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annotate dep/fmt/test/format-impl-test.cc @ 343:1faa72660932

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*: transfer back to cmake from autotools autotools just made lots of things more complicated than they should have and many things broke (i.e. translations)
author Paper <paper@paper.us.eu.org>
date Thu, 20 Jun 2024 05:56:06 -0400
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343
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Paper <paper@paper.us.eu.org>
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1 // Formatting library for C++ - formatting library implementation tests
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2 //
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3 // Copyright (c) 2012 - present, Victor Zverovich
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4 // All rights reserved.
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5 //
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6 // For the license information refer to format.h.
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7
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8 #include <algorithm>
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9 #include <cstring>
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10
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11 // clang-format off
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12 #include "test-assert.h"
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13 // clang-format on
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14
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15 #include "fmt/format.h"
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16 #include "gmock/gmock.h"
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17 #include "util.h"
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18
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19 using fmt::detail::bigint;
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20 using fmt::detail::fp;
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21 using fmt::detail::max_value;
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22
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23 static_assert(!std::is_copy_constructible<bigint>::value, "");
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24 static_assert(!std::is_copy_assignable<bigint>::value, "");
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25
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26 TEST(bigint_test, construct) {
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27 EXPECT_EQ(fmt::to_string(bigint()), "");
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28 EXPECT_EQ(fmt::to_string(bigint(0x42)), "42");
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29 EXPECT_EQ(fmt::to_string(bigint(0x123456789abcedf0)), "123456789abcedf0");
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30 }
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31
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32 TEST(bigint_test, compare) {
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33 bigint n1(42);
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34 bigint n2(42);
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35 EXPECT_EQ(compare(n1, n2), 0);
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36 n2 <<= 32;
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37 EXPECT_LT(compare(n1, n2), 0);
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38 bigint n3(43);
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39 EXPECT_LT(compare(n1, n3), 0);
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40 EXPECT_GT(compare(n3, n1), 0);
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41 bigint n4(42 * 0x100000001);
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42 EXPECT_LT(compare(n2, n4), 0);
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43 EXPECT_GT(compare(n4, n2), 0);
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44 }
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45
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46 TEST(bigint_test, add_compare) {
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47 EXPECT_LT(
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48 add_compare(bigint(0xffffffff), bigint(0xffffffff), bigint(1) <<= 64), 0);
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49 EXPECT_LT(add_compare(bigint(1) <<= 32, bigint(1), bigint(1) <<= 96), 0);
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50 EXPECT_GT(add_compare(bigint(1) <<= 32, bigint(0), bigint(0xffffffff)), 0);
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51 EXPECT_GT(add_compare(bigint(0), bigint(1) <<= 32, bigint(0xffffffff)), 0);
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52 EXPECT_GT(add_compare(bigint(42), bigint(1), bigint(42)), 0);
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53 EXPECT_GT(add_compare(bigint(0xffffffff), bigint(1), bigint(0xffffffff)), 0);
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54 EXPECT_LT(add_compare(bigint(10), bigint(10), bigint(22)), 0);
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55 EXPECT_LT(add_compare(bigint(0x100000010), bigint(0x100000010),
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56 bigint(0x300000010)),
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57 0);
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58 EXPECT_GT(add_compare(bigint(0x1ffffffff), bigint(0x100000002),
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59 bigint(0x300000000)),
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60 0);
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61 EXPECT_EQ(add_compare(bigint(0x1ffffffff), bigint(0x100000002),
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62 bigint(0x300000001)),
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63 0);
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64 EXPECT_LT(add_compare(bigint(0x1ffffffff), bigint(0x100000002),
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65 bigint(0x300000002)),
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66 0);
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67 EXPECT_LT(add_compare(bigint(0x1ffffffff), bigint(0x100000002),
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68 bigint(0x300000003)),
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69 0);
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70 }
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71
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72 TEST(bigint_test, shift_left) {
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73 bigint n(0x42);
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74 n <<= 0;
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75 EXPECT_EQ(fmt::to_string(n), "42");
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76 n <<= 1;
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77 EXPECT_EQ(fmt::to_string(n), "84");
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78 n <<= 25;
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79 EXPECT_EQ(fmt::to_string(n), "108000000");
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80 }
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81
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82 TEST(bigint_test, multiply) {
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83 bigint n(0x42);
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84 EXPECT_THROW(n *= 0, assertion_failure);
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85 n *= 1;
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86 EXPECT_EQ(fmt::to_string(n), "42");
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87
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88 n *= 2;
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89 EXPECT_EQ(fmt::to_string(n), "84");
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90 n *= 0x12345678;
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91 EXPECT_EQ(fmt::to_string(n), "962fc95e0");
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92
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93 bigint bigmax(max_value<uint32_t>());
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94 bigmax *= max_value<uint32_t>();
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95 EXPECT_EQ(fmt::to_string(bigmax), "fffffffe00000001");
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96
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97 const auto max64 = max_value<uint64_t>();
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98 bigmax = max64;
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99 bigmax *= max64;
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100 EXPECT_EQ(fmt::to_string(bigmax), "fffffffffffffffe0000000000000001");
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101
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102 const auto max128 = (fmt::detail::uint128_t(max64) << 64) | max64;
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103 bigmax = max128;
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104 bigmax *= max128;
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105 EXPECT_EQ(fmt::to_string(bigmax),
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106 "fffffffffffffffffffffffffffffffe00000000000000000000000000000001");
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107 }
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108
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109 TEST(bigint_test, square) {
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110 bigint n0(0);
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111 n0.square();
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112 EXPECT_EQ(fmt::to_string(n0), "0");
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113 bigint n1(0x100);
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114 n1.square();
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115 EXPECT_EQ(fmt::to_string(n1), "10000");
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116 bigint n2(0xfffffffff);
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117 n2.square();
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118 EXPECT_EQ(fmt::to_string(n2), "ffffffffe000000001");
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119 bigint n3(max_value<uint64_t>());
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120 n3.square();
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121 EXPECT_EQ(fmt::to_string(n3), "fffffffffffffffe0000000000000001");
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122 bigint n4;
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123 n4.assign_pow10(10);
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124 EXPECT_EQ(fmt::to_string(n4), "2540be400");
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125 }
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126
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127 TEST(bigint_test, divmod_assign_zero_divisor) {
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128 bigint zero(0);
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129 EXPECT_THROW(bigint(0).divmod_assign(zero), assertion_failure);
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130 EXPECT_THROW(bigint(42).divmod_assign(zero), assertion_failure);
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131 }
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132
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133 TEST(bigint_test, divmod_assign_self) {
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134 bigint n(100);
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135 EXPECT_THROW(n.divmod_assign(n), assertion_failure);
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136 }
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137
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138 TEST(bigint_test, divmod_assign_unaligned) {
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139 // (42 << 340) / pow(10, 100):
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140 bigint n1(42);
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141 n1 <<= 340;
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142 bigint n2;
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143 n2.assign_pow10(100);
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144 int result = n1.divmod_assign(n2);
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145 EXPECT_EQ(result, 9406);
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Paper <paper@paper.us.eu.org>
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diff changeset
146 EXPECT_EQ(fmt::to_string(n1),
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
147 "10f8353019583bfc29ffc8f564e1b9f9d819dbb4cf783e4507eca1539220p96");
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
148 }
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
149
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
150 TEST(bigint_test, divmod_assign) {
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
151 // 100 / 10:
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
152 bigint n1(100);
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
153 int result = n1.divmod_assign(bigint(10));
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
154 EXPECT_EQ(result, 10);
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
155 EXPECT_EQ(fmt::to_string(n1), "0");
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
156 // pow(10, 100) / (42 << 320):
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
157 n1.assign_pow10(100);
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
158 result = n1.divmod_assign(bigint(42) <<= 320);
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
159 EXPECT_EQ(result, 111);
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
160 EXPECT_EQ(fmt::to_string(n1),
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
161 "13ad2594c37ceb0b2784c4ce0bf38ace408e211a7caab24308a82e8f10p96");
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
162 // 42 / 100:
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
163 bigint n2(42);
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
164 n1.assign_pow10(2);
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Paper <paper@paper.us.eu.org>
parents:
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165 result = n2.divmod_assign(n1);
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Paper <paper@paper.us.eu.org>
parents:
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166 EXPECT_EQ(result, 0);
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
167 EXPECT_EQ(fmt::to_string(n2), "2a");
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Paper <paper@paper.us.eu.org>
parents:
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168 }
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
169
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Paper <paper@paper.us.eu.org>
parents:
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170 template <bool is_iec559> void run_double_tests() {
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Paper <paper@paper.us.eu.org>
parents:
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171 fmt::print("warning: double is not IEC559, skipping FP tests\n");
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Paper <paper@paper.us.eu.org>
parents:
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172 }
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
173
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Paper <paper@paper.us.eu.org>
parents:
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174 template <> void run_double_tests<true>() {
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Paper <paper@paper.us.eu.org>
parents:
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175 // Construct from double.
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Paper <paper@paper.us.eu.org>
parents:
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176 EXPECT_EQ(fp(1.23), fp(0x13ae147ae147aeu, -52));
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Paper <paper@paper.us.eu.org>
parents:
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177 }
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
178
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Paper <paper@paper.us.eu.org>
parents:
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179 TEST(fp_test, double_tests) {
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Paper <paper@paper.us.eu.org>
parents:
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180 run_double_tests<std::numeric_limits<double>::is_iec559>();
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Paper <paper@paper.us.eu.org>
parents:
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181 }
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Paper <paper@paper.us.eu.org>
parents:
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182
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
183 TEST(fp_test, normalize) {
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Paper <paper@paper.us.eu.org>
parents:
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184 const auto v = fp(0xbeef, 42);
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Paper <paper@paper.us.eu.org>
parents:
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185 auto normalized = normalize(v);
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Paper <paper@paper.us.eu.org>
parents:
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186 EXPECT_EQ(normalized.f, 0xbeef000000000000);
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Paper <paper@paper.us.eu.org>
parents:
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187 EXPECT_EQ(normalized.e, -6);
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Paper <paper@paper.us.eu.org>
parents:
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188 }
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
189
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
190 TEST(fp_test, multiply) {
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Paper <paper@paper.us.eu.org>
parents:
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191 auto v = fp(123ULL << 32, 4) * fp(56ULL << 32, 7);
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Paper <paper@paper.us.eu.org>
parents:
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192 EXPECT_EQ(v.f, 123u * 56u);
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Paper <paper@paper.us.eu.org>
parents:
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193 EXPECT_EQ(v.e, 4 + 7 + 64);
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
194 v = fp(123ULL << 32, 4) * fp(567ULL << 31, 8);
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Paper <paper@paper.us.eu.org>
parents:
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195 EXPECT_EQ(v.f, (123 * 567 + 1u) / 2);
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
196 EXPECT_EQ(v.e, 4 + 8 + 64);
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Paper <paper@paper.us.eu.org>
parents:
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197 }
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Paper <paper@paper.us.eu.org>
parents:
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198
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
199 TEST(fp_test, dragonbox_max_k) {
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
200 using fmt::detail::dragonbox::floor_log10_pow2;
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
201 using float_info = fmt::detail::dragonbox::float_info<float>;
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
202 EXPECT_EQ(
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
203 fmt::detail::const_check(float_info::max_k),
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
204 float_info::kappa -
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
205 floor_log10_pow2(std::numeric_limits<float>::min_exponent -
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
206 fmt::detail::num_significand_bits<float>() - 1));
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
207 using double_info = fmt::detail::dragonbox::float_info<double>;
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
208 EXPECT_EQ(fmt::detail::const_check(double_info::max_k),
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
209 double_info::kappa -
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
210 floor_log10_pow2(
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
211 std::numeric_limits<double>::min_exponent -
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Paper <paper@paper.us.eu.org>
parents:
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212 2 * fmt::detail::num_significand_bits<double>() - 1));
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Paper <paper@paper.us.eu.org>
parents:
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213 }
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Paper <paper@paper.us.eu.org>
parents:
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214
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Paper <paper@paper.us.eu.org>
parents:
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215 TEST(format_impl_test, format_error_code) {
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Paper <paper@paper.us.eu.org>
parents:
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216 std::string msg = "error 42", sep = ": ";
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Paper <paper@paper.us.eu.org>
parents:
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217 {
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Paper <paper@paper.us.eu.org>
parents:
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218 auto buffer = fmt::memory_buffer();
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Paper <paper@paper.us.eu.org>
parents:
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219 fmt::format_to(fmt::appender(buffer), "garbage");
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Paper <paper@paper.us.eu.org>
parents:
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220 fmt::detail::format_error_code(buffer, 42, "test");
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Paper <paper@paper.us.eu.org>
parents:
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221 EXPECT_EQ(to_string(buffer), "test: " + msg);
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
222 }
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
223 {
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Paper <paper@paper.us.eu.org>
parents:
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224 auto buffer = fmt::memory_buffer();
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Paper <paper@paper.us.eu.org>
parents:
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225 auto prefix =
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
226 std::string(fmt::inline_buffer_size - msg.size() - sep.size() + 1, 'x');
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Paper <paper@paper.us.eu.org>
parents:
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227 fmt::detail::format_error_code(buffer, 42, prefix);
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
228 EXPECT_EQ(msg, to_string(buffer));
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Paper <paper@paper.us.eu.org>
parents:
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229 }
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
230 int codes[] = {42, -1};
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
231 for (size_t i = 0, n = sizeof(codes) / sizeof(*codes); i < n; ++i) {
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
232 // Test maximum buffer size.
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
233 msg = fmt::format("error {}", codes[i]);
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
234 fmt::memory_buffer buffer;
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
235 auto prefix =
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
236 std::string(fmt::inline_buffer_size - msg.size() - sep.size(), 'x');
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
237 fmt::detail::format_error_code(buffer, codes[i], prefix);
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
238 EXPECT_EQ(prefix + sep + msg, to_string(buffer));
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
239 size_t size = fmt::inline_buffer_size;
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Paper <paper@paper.us.eu.org>
parents:
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240 EXPECT_EQ(size, buffer.size());
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
241 buffer.resize(0);
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Paper <paper@paper.us.eu.org>
parents:
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242 // Test with a message that doesn't fit into the buffer.
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Paper <paper@paper.us.eu.org>
parents:
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243 prefix += 'x';
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
244 fmt::detail::format_error_code(buffer, codes[i], prefix);
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Paper <paper@paper.us.eu.org>
parents:
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245 EXPECT_EQ(to_string(buffer), msg);
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
246 }
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Paper <paper@paper.us.eu.org>
parents:
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247 }
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Paper <paper@paper.us.eu.org>
parents:
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248
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Paper <paper@paper.us.eu.org>
parents:
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249 // Tests fmt::detail::count_digits for integer type Int.
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Paper <paper@paper.us.eu.org>
parents:
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250 template <typename Int> void test_count_digits() {
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Paper <paper@paper.us.eu.org>
parents:
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251 for (Int i = 0; i < 10; ++i) EXPECT_EQ(1u, fmt::detail::count_digits(i));
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Paper <paper@paper.us.eu.org>
parents:
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252 for (Int i = 1, n = 1, end = max_value<Int>() / 10; n <= end; ++i) {
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Paper <paper@paper.us.eu.org>
parents:
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253 n *= 10;
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Paper <paper@paper.us.eu.org>
parents:
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254 EXPECT_EQ(fmt::detail::count_digits(n - 1), i);
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Paper <paper@paper.us.eu.org>
parents:
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255 EXPECT_EQ(fmt::detail::count_digits(n), i + 1);
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
256 }
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
257 }
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Paper <paper@paper.us.eu.org>
parents:
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258
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Paper <paper@paper.us.eu.org>
parents:
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259 TEST(format_impl_test, count_digits) {
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
260 test_count_digits<uint32_t>();
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
261 test_count_digits<uint64_t>();
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
262 }
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Paper <paper@paper.us.eu.org>
parents:
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263
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
264 TEST(format_impl_test, countl_zero) {
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
265 constexpr auto num_bits = fmt::detail::num_bits<uint32_t>();
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Paper <paper@paper.us.eu.org>
parents:
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266 uint32_t n = 1u;
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
267 for (int i = 1; i < num_bits - 1; i++) {
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Paper <paper@paper.us.eu.org>
parents:
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268 n <<= 1;
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Paper <paper@paper.us.eu.org>
parents:
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269 EXPECT_EQ(fmt::detail::countl_zero(n - 1), num_bits - i);
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Paper <paper@paper.us.eu.org>
parents:
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270 EXPECT_EQ(fmt::detail::countl_zero(n), num_bits - i - 1);
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Paper <paper@paper.us.eu.org>
parents:
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271 }
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Paper <paper@paper.us.eu.org>
parents:
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272 }
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Paper <paper@paper.us.eu.org>
parents:
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273
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Paper <paper@paper.us.eu.org>
parents:
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274 #if FMT_USE_FLOAT128
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
275 TEST(format_impl_test, write_float128) {
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
276 auto s = std::string();
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
277 fmt::detail::write<char>(std::back_inserter(s), __float128(42));
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
278 EXPECT_EQ(s, "42");
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
279 }
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
280 #endif
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
281
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
282 struct double_double {
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
283 double a;
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
284 double b;
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
285
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
286 explicit constexpr double_double(double a_val = 0, double b_val = 0)
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
287 : a(a_val), b(b_val) {}
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
288
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Paper <paper@paper.us.eu.org>
parents:
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289 operator double() const { return a + b; }
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
290 auto operator-() const -> double_double { return double_double(-a, -b); }
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
291 };
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Paper <paper@paper.us.eu.org>
parents:
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292
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
293 auto format_as(double_double d) -> double { return d; }
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Paper <paper@paper.us.eu.org>
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diff changeset
294
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295 bool operator>=(const double_double& lhs, const double_double& rhs) {
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parents:
diff changeset
296 return lhs.a + lhs.b >= rhs.a + rhs.b;
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
297 }
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
298
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
299 struct slow_float {
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
300 float value;
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
301
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
302 explicit constexpr slow_float(float val = 0) : value(val) {}
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
303 operator float() const { return value; }
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
304 auto operator-() const -> slow_float { return slow_float(-value); }
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
305 };
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
306
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
307 auto format_as(slow_float f) -> float { return f; }
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
308
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
309 namespace std {
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
310 template <> struct is_floating_point<double_double> : std::true_type {};
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
311 template <> struct numeric_limits<double_double> {
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
312 // is_iec559 is true for double-double in libstdc++.
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
313 static constexpr bool is_iec559 = true;
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
314 static constexpr int digits = 106;
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
315 };
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
316
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
317 template <> struct is_floating_point<slow_float> : std::true_type {};
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
318 template <> struct numeric_limits<slow_float> : numeric_limits<float> {};
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
319 } // namespace std
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
320
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
321 FMT_BEGIN_NAMESPACE
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
322 namespace detail {
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
323 template <> struct is_fast_float<slow_float> : std::false_type {};
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
324 namespace dragonbox {
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
325 template <> struct float_info<slow_float> {
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
326 using carrier_uint = uint32_t;
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
327 static const int exponent_bits = 8;
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
328 };
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
329 } // namespace dragonbox
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
330 } // namespace detail
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
331 FMT_END_NAMESPACE
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
332
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
333 TEST(format_impl_test, write_double_double) {
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
334 auto s = std::string();
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
335 fmt::detail::write<char>(std::back_inserter(s), double_double(42), {});
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
336 // Specializing is_floating_point is broken in MSVC.
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
337 if (!FMT_MSC_VERSION) EXPECT_EQ(s, "42");
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
338 }
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
339
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
340 TEST(format_impl_test, write_dragon_even) {
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
341 auto s = std::string();
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
342 fmt::detail::write<char>(std::back_inserter(s), slow_float(33554450.0f), {});
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
343 // Specializing is_floating_point is broken in MSVC.
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
344 if (!FMT_MSC_VERSION) EXPECT_EQ(s, "33554450");
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Paper <paper@paper.us.eu.org>
parents:
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345 }
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
346
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
347 #if defined(_WIN32) && !defined(FMT_WINDOWS_NO_WCHAR)
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
348 # include <windows.h>
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Paper <paper@paper.us.eu.org>
parents:
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349
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
350 TEST(format_impl_test, write_console_signature) {
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
351 decltype(::WriteConsoleW)* p = fmt::detail::WriteConsoleW;
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
352 (void)p;
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
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353 }
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
354 #endif
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Paper <paper@paper.us.eu.org>
parents:
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355
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
356 // A public domain branchless UTF-8 decoder by Christopher Wellons:
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
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357 // https://github.com/skeeto/branchless-utf8
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
358 constexpr bool unicode_is_surrogate(uint32_t c) {
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
359 return c >= 0xD800U && c <= 0xDFFFU;
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
360 }
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
361
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
362 FMT_CONSTEXPR char* utf8_encode(char* s, uint32_t c) {
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
363 if (c >= (1UL << 16)) {
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
364 s[0] = static_cast<char>(0xf0 | (c >> 18));
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
365 s[1] = static_cast<char>(0x80 | ((c >> 12) & 0x3f));
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Paper <paper@paper.us.eu.org>
parents:
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366 s[2] = static_cast<char>(0x80 | ((c >> 6) & 0x3f));
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Paper <paper@paper.us.eu.org>
parents:
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367 s[3] = static_cast<char>(0x80 | ((c >> 0) & 0x3f));
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Paper <paper@paper.us.eu.org>
parents:
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368 return s + 4;
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Paper <paper@paper.us.eu.org>
parents:
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369 } else if (c >= (1UL << 11)) {
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
370 s[0] = static_cast<char>(0xe0 | (c >> 12));
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
371 s[1] = static_cast<char>(0x80 | ((c >> 6) & 0x3f));
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Paper <paper@paper.us.eu.org>
parents:
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372 s[2] = static_cast<char>(0x80 | ((c >> 0) & 0x3f));
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Paper <paper@paper.us.eu.org>
parents:
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373 return s + 3;
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
374 } else if (c >= (1UL << 7)) {
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
375 s[0] = static_cast<char>(0xc0 | (c >> 6));
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
376 s[1] = static_cast<char>(0x80 | ((c >> 0) & 0x3f));
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Paper <paper@paper.us.eu.org>
parents:
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377 return s + 2;
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
378 } else {
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Paper <paper@paper.us.eu.org>
parents:
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379 s[0] = static_cast<char>(c);
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
380 return s + 1;
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
381 }
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
382 }
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
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383
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
384 // Make sure it can decode every character
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
385 TEST(format_impl_test, utf8_decode_decode_all) {
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
386 for (uint32_t i = 0; i < 0x10ffff; i++) {
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
387 if (!unicode_is_surrogate(i)) {
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
388 int e;
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
389 uint32_t c;
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
390 char buf[8] = {0};
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
391 char* end = utf8_encode(buf, i);
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
392 const char* res = fmt::detail::utf8_decode(buf, &c, &e);
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
393 EXPECT_EQ(end, res);
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
394 EXPECT_EQ(c, i);
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
395 EXPECT_EQ(e, 0);
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
396 }
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
397 }
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
398 }
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
399
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
400 // Reject everything outside of U+0000..U+10FFFF
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
401 TEST(format_impl_test, utf8_decode_out_of_range) {
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
402 for (uint32_t i = 0x110000; i < 0x1fffff; i++) {
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
403 int e;
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
404 uint32_t c;
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
405 char buf[8] = {0};
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
406 utf8_encode(buf, i);
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
407 const char* end = fmt::detail::utf8_decode(buf, &c, &e);
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
408 EXPECT_NE(e, 0);
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
409 EXPECT_EQ(end - buf, 4);
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
410 }
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
411 }
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
412
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
413 // Does it reject all surrogate halves?
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
414 TEST(format_impl_test, utf8_decode_surrogate_halves) {
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
415 for (uint32_t i = 0xd800; i <= 0xdfff; i++) {
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
416 int e;
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
417 uint32_t c;
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
418 char buf[8] = {0};
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
419 utf8_encode(buf, i);
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
420 fmt::detail::utf8_decode(buf, &c, &e);
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
421 EXPECT_NE(e, 0);
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
422 }
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
423 }
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
424
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
425 // How about non-canonical encodings?
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
426 TEST(format_impl_test, utf8_decode_non_canonical_encodings) {
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
427 int e;
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
428 uint32_t c;
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
429 const char* end;
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
430
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
431 char buf2[8] = {char(0xc0), char(0xA4)};
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
432 end = fmt::detail::utf8_decode(buf2, &c, &e);
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
433 EXPECT_NE(e, 0); // non-canonical len 2
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
434 EXPECT_EQ(end, buf2 + 2); // non-canonical recover 2
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
435
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
436 char buf3[8] = {char(0xe0), char(0x80), char(0xA4)};
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
437 end = fmt::detail::utf8_decode(buf3, &c, &e);
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
438 EXPECT_NE(e, 0); // non-canonical len 3
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
439 EXPECT_EQ(end, buf3 + 3); // non-canonical recover 3
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
440
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Paper <paper@paper.us.eu.org>
parents:
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441 char buf4[8] = {char(0xf0), char(0x80), char(0x80), char(0xA4)};
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
442 end = fmt::detail::utf8_decode(buf4, &c, &e);
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Paper <paper@paper.us.eu.org>
parents:
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443 EXPECT_NE(e, 0); // non-canonical encoding len 4
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Paper <paper@paper.us.eu.org>
parents:
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444 EXPECT_EQ(end, buf4 + 4); // non-canonical recover 4
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
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445 }
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
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446
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
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447 // Let's try some bogus byte sequences
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Paper <paper@paper.us.eu.org>
parents:
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448 TEST(format_impl_test, utf8_decode_bogus_byte_sequences) {
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Paper <paper@paper.us.eu.org>
parents:
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449 int e;
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Paper <paper@paper.us.eu.org>
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450 uint32_t c;
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Paper <paper@paper.us.eu.org>
parents:
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451
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Paper <paper@paper.us.eu.org>
parents:
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452 // Invalid first byte
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Paper <paper@paper.us.eu.org>
parents:
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453 char buf0[4] = {char(0xff)};
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Paper <paper@paper.us.eu.org>
parents:
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454 auto len = fmt::detail::utf8_decode(buf0, &c, &e) - buf0;
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Paper <paper@paper.us.eu.org>
parents:
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455 EXPECT_NE(e, 0); // "bogus [ff] 0x%02x U+%04lx", e, (unsigned long)c);
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Paper <paper@paper.us.eu.org>
parents:
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456 EXPECT_EQ(len, 1); // "bogus [ff] recovery %d", len);
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
457
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Paper <paper@paper.us.eu.org>
parents:
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458 // Invalid first byte
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Paper <paper@paper.us.eu.org>
parents:
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459 char buf1[4] = {char(0x80)};
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
460 len = fmt::detail::utf8_decode(buf1, &c, &e) - buf1;
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Paper <paper@paper.us.eu.org>
parents:
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461 EXPECT_NE(e, 0); // "bogus [80] 0x%02x U+%04lx", e, (unsigned long)c);
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Paper <paper@paper.us.eu.org>
parents:
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462 EXPECT_EQ(len, 1); // "bogus [80] recovery %d", len);
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Paper <paper@paper.us.eu.org>
parents:
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463
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Paper <paper@paper.us.eu.org>
parents:
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464 // Looks like a two-byte sequence but second byte is wrong
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Paper <paper@paper.us.eu.org>
parents:
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465 char buf2[4] = {char(0xc0), char(0x0a)};
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Paper <paper@paper.us.eu.org>
parents:
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466 len = fmt::detail::utf8_decode(buf2, &c, &e) - buf2;
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Paper <paper@paper.us.eu.org>
parents:
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467 EXPECT_NE(e, 0); // "bogus [c0 0a] 0x%02x U+%04lx", e, (unsigned long)c
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Paper <paper@paper.us.eu.org>
parents:
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468 EXPECT_EQ(len, 2); // "bogus [c0 0a] recovery %d", len);
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Paper <paper@paper.us.eu.org>
parents:
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469 }
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Paper <paper@paper.us.eu.org>
parents:
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470
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Paper <paper@paper.us.eu.org>
parents:
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471 TEST(format_impl_test, to_utf8) {
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Paper <paper@paper.us.eu.org>
parents:
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472 auto s = std::string("ёжик");
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Paper <paper@paper.us.eu.org>
parents:
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473 auto u = fmt::detail::to_utf8<wchar_t>(L"\x0451\x0436\x0438\x043A");
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Paper <paper@paper.us.eu.org>
parents:
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474 EXPECT_EQ(s, u.str());
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Paper <paper@paper.us.eu.org>
parents:
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475 EXPECT_EQ(s.size(), u.size());
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Paper <paper@paper.us.eu.org>
parents:
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476 }