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annotate dep/fmt/test/compile-test.cc @ 367:8d45d892be88 default tip

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*: instead of pugixml, use Qt XML features this means we have one extra Qt dependency though...
author Paper <paper@tflc.us>
date Sun, 17 Nov 2024 22:55:47 -0500
parents 1faa72660932
children
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343
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1 // Formatting library for C++ - formatting library 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 "fmt/compile.h"
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9
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10 #include <type_traits>
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11
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12 #include "fmt/chrono.h"
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13 #include "gmock/gmock.h"
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14 #include "gtest-extra.h"
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15
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16 TEST(iterator_test, counting_iterator) {
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17 auto it = fmt::detail::counting_iterator();
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18 auto prev = it++;
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19 EXPECT_EQ(prev.count(), 0);
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20 EXPECT_EQ(it.count(), 1);
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21 EXPECT_EQ((it + 41).count(), 42);
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22 }
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23
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24 TEST(compile_test, compile_fallback) {
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25 // FMT_COMPILE should fallback on runtime formatting when `if constexpr` is
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26 // not available.
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27 EXPECT_EQ("42", fmt::format(FMT_COMPILE("{}"), 42));
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28 }
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29
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30 struct type_with_get {
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31 template <int> friend void get(type_with_get);
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32 };
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33
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34 FMT_BEGIN_NAMESPACE
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35 template <> struct formatter<type_with_get> : formatter<int> {
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36 template <typename FormatContext>
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37 auto format(type_with_get, FormatContext& ctx) -> decltype(ctx.out()) {
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38 return formatter<int>::format(42, ctx);
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39 }
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40 };
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41 FMT_END_NAMESPACE
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42
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43 TEST(compile_test, compile_type_with_get) {
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44 EXPECT_EQ("42", fmt::format(FMT_COMPILE("{}"), type_with_get()));
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45 }
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46
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47 #if defined(__cpp_if_constexpr) && defined(__cpp_return_type_deduction)
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48 struct test_formattable {};
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49
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50 FMT_BEGIN_NAMESPACE
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51 template <> struct formatter<test_formattable> : formatter<const char*> {
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52 char word_spec = 'f';
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53 constexpr auto parse(format_parse_context& ctx) {
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54 auto it = ctx.begin(), end = ctx.end();
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55 if (it == end || *it == '}') return it;
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56 if (it != end && (*it == 'f' || *it == 'b')) word_spec = *it++;
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57 if (it != end && *it != '}') throw format_error("invalid format");
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58 return it;
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59 }
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60 template <typename FormatContext>
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61 constexpr auto format(test_formattable, FormatContext& ctx) const
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62 -> decltype(ctx.out()) {
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63 return formatter<const char*>::format(word_spec == 'f' ? "foo" : "bar",
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64 ctx);
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65 }
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66 };
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67 FMT_END_NAMESPACE
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68
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69 TEST(compile_test, format_default) {
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70 EXPECT_EQ("42", fmt::format(FMT_COMPILE("{}"), 42));
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71 EXPECT_EQ("42", fmt::format(FMT_COMPILE("{}"), 42u));
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72 EXPECT_EQ("42", fmt::format(FMT_COMPILE("{}"), 42ll));
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73 EXPECT_EQ("42", fmt::format(FMT_COMPILE("{}"), 42ull));
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74 EXPECT_EQ("true", fmt::format(FMT_COMPILE("{}"), true));
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75 EXPECT_EQ("x", fmt::format(FMT_COMPILE("{}"), 'x'));
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76 EXPECT_EQ("4.2", fmt::format(FMT_COMPILE("{}"), 4.2));
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77 EXPECT_EQ("foo", fmt::format(FMT_COMPILE("{}"), "foo"));
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78 EXPECT_EQ("foo", fmt::format(FMT_COMPILE("{}"), std::string("foo")));
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79 EXPECT_EQ("foo", fmt::format(FMT_COMPILE("{}"), test_formattable()));
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80 auto t = std::chrono::system_clock::now();
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81 EXPECT_EQ(fmt::format("{}", t), fmt::format(FMT_COMPILE("{}"), t));
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82 # ifdef __cpp_lib_byte
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83 EXPECT_EQ("42", fmt::format(FMT_COMPILE("{}"), std::byte{42}));
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84 # endif
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85 }
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86
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87 TEST(compile_test, format_wide_string) {
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88 EXPECT_EQ(L"42", fmt::format(FMT_COMPILE(L"{}"), 42));
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89 }
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90
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91 TEST(compile_test, format_specs) {
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92 EXPECT_EQ("42", fmt::format(FMT_COMPILE("{:x}"), 0x42));
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93 EXPECT_EQ("1.2 ms ",
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94 fmt::format(FMT_COMPILE("{:7.1%Q %q}"),
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95 std::chrono::duration<double, std::milli>(1.234)));
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96 }
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97
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98 TEST(compile_test, dynamic_format_specs) {
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99 EXPECT_EQ("foo ", fmt::format(FMT_COMPILE("{:{}}"), "foo", 5));
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100 EXPECT_EQ(" 3.14", fmt::format(FMT_COMPILE("{:{}.{}f}"), 3.141592, 6, 2));
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101 EXPECT_EQ(
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102 "=1.234ms=",
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103 fmt::format(FMT_COMPILE("{:=^{}.{}}"),
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104 std::chrono::duration<double, std::milli>(1.234), 9, 3));
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105 }
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106
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107 TEST(compile_test, manual_ordering) {
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108 EXPECT_EQ("42", fmt::format(FMT_COMPILE("{0}"), 42));
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109 EXPECT_EQ(" -42", fmt::format(FMT_COMPILE("{0:4}"), -42));
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110 EXPECT_EQ("41 43", fmt::format(FMT_COMPILE("{0} {1}"), 41, 43));
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111 EXPECT_EQ("41 43", fmt::format(FMT_COMPILE("{1} {0}"), 43, 41));
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112 EXPECT_EQ("41 43", fmt::format(FMT_COMPILE("{0} {2}"), 41, 42, 43));
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113 EXPECT_EQ(" 41 43", fmt::format(FMT_COMPILE("{1:{2}} {0:4}"), 43, 41, 4));
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114 EXPECT_EQ("42 1.2 ms ",
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115 fmt::format(FMT_COMPILE("{0} {1:7.1%Q %q}"), 42,
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116 std::chrono::duration<double, std::milli>(1.234)));
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117 EXPECT_EQ(
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118 "true 42 42 foo 0x1234 foo",
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119 fmt::format(FMT_COMPILE("{0} {1} {2} {3} {4} {5}"), true, 42, 42.0f,
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120 "foo", reinterpret_cast<void*>(0x1234), test_formattable()));
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121 EXPECT_EQ(L"42", fmt::format(FMT_COMPILE(L"{0}"), 42));
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122 }
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123
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124 TEST(compile_test, named) {
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125 auto runtime_named_field_compiled =
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126 fmt::detail::compile<decltype(fmt::arg("arg", 42))>(FMT_COMPILE("{arg}"));
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127 static_assert(std::is_same_v<decltype(runtime_named_field_compiled),
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128 fmt::detail::runtime_named_field<char>>);
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129
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130 EXPECT_EQ("42", fmt::format(FMT_COMPILE("{}"), fmt::arg("arg", 42)));
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131 EXPECT_EQ("41 43", fmt::format(FMT_COMPILE("{} {}"), fmt::arg("arg", 41),
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132 fmt::arg("arg", 43)));
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133
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134 EXPECT_EQ("foobar",
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135 fmt::format(FMT_COMPILE("{a0}{a1}"), fmt::arg("a0", "foo"),
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136 fmt::arg("a1", "bar")));
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137 EXPECT_EQ("foobar", fmt::format(FMT_COMPILE("{}{a1}"), fmt::arg("a0", "foo"),
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138 fmt::arg("a1", "bar")));
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139 EXPECT_EQ("foofoo", fmt::format(FMT_COMPILE("{a0}{}"), fmt::arg("a0", "foo"),
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
140 fmt::arg("a1", "bar")));
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
141 EXPECT_EQ("foobar", fmt::format(FMT_COMPILE("{0}{a1}"), fmt::arg("a0", "foo"),
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
142 fmt::arg("a1", "bar")));
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
143 EXPECT_EQ("foobar", fmt::format(FMT_COMPILE("{a0}{1}"), fmt::arg("a0", "foo"),
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
144 fmt::arg("a1", "bar")));
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
145
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
146 EXPECT_EQ("foobar",
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
147 fmt::format(FMT_COMPILE("{}{a1}"), "foo", fmt::arg("a1", "bar")));
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
148 EXPECT_EQ("foobar",
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
149 fmt::format(FMT_COMPILE("{a0}{a1}"), fmt::arg("a1", "bar"),
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
150 fmt::arg("a2", "baz"), fmt::arg("a0", "foo")));
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
151 EXPECT_EQ(" bar foo ",
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
152 fmt::format(FMT_COMPILE(" {foo} {bar} "), fmt::arg("foo", "bar"),
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
153 fmt::arg("bar", "foo")));
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
154
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
155 EXPECT_THROW(fmt::format(FMT_COMPILE("{invalid}"), fmt::arg("valid", 42)),
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
156 fmt::format_error);
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
157
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
158 # if FMT_USE_NONTYPE_TEMPLATE_ARGS
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
159 using namespace fmt::literals;
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
160 auto statically_named_field_compiled =
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
161 fmt::detail::compile<decltype("arg"_a = 42)>(FMT_COMPILE("{arg}"));
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
162 static_assert(std::is_same_v<decltype(statically_named_field_compiled),
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
163 fmt::detail::field<char, int, 0>>);
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
164
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
165 EXPECT_EQ("41 43",
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
166 fmt::format(FMT_COMPILE("{a0} {a1}"), "a0"_a = 41, "a1"_a = 43));
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
167 EXPECT_EQ("41 43",
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
168 fmt::format(FMT_COMPILE("{a1} {a0}"), "a0"_a = 43, "a1"_a = 41));
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
169 # endif
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
170 }
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
171
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
172 TEST(compile_test, join) {
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
173 unsigned char data[] = {0x1, 0x2, 0xaf};
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
174 EXPECT_EQ("0102af", fmt::format(FMT_COMPILE("{:02x}"), fmt::join(data, "")));
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
175 }
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
176
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
177 TEST(compile_test, format_to) {
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
178 char buf[8];
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
179 auto end = fmt::format_to(buf, FMT_COMPILE("{}"), 42);
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
180 *end = '\0';
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
181 EXPECT_STREQ("42", buf);
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
182 end = fmt::format_to(buf, FMT_COMPILE("{:x}"), 42);
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
183 *end = '\0';
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
184 EXPECT_STREQ("2a", buf);
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
185 }
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
186
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
187 TEST(compile_test, format_to_n) {
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
188 constexpr auto buffer_size = 8;
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
189 char buffer[buffer_size];
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
190 auto res = fmt::format_to_n(buffer, buffer_size, FMT_COMPILE("{}"), 42);
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
191 *res.out = '\0';
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
192 EXPECT_STREQ("42", buffer);
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
193 res = fmt::format_to_n(buffer, buffer_size, FMT_COMPILE("{:x}"), 42);
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Paper <paper@paper.us.eu.org>
parents:
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194 *res.out = '\0';
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
195 EXPECT_STREQ("2a", buffer);
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
196 }
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
197
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
198 # ifdef __cpp_lib_bit_cast
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
199 TEST(compile_test, constexpr_formatted_size) {
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
200 FMT_CONSTEXPR20 size_t size = fmt::formatted_size(FMT_COMPILE("{}"), 42);
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Paper <paper@paper.us.eu.org>
parents:
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201 EXPECT_EQ(size, 2);
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
202 FMT_CONSTEXPR20 size_t hex_size =
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
203 fmt::formatted_size(FMT_COMPILE("{:x}"), 15);
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
204 EXPECT_EQ(hex_size, 1);
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
205 FMT_CONSTEXPR20 size_t binary_size =
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
206 fmt::formatted_size(FMT_COMPILE("{:b}"), 15);
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
207 EXPECT_EQ(binary_size, 4);
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
208 FMT_CONSTEXPR20 size_t padded_size =
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
209 fmt::formatted_size(FMT_COMPILE("{:*^6}"), 42);
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
210 EXPECT_EQ(padded_size, 6);
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
211 FMT_CONSTEXPR20 size_t float_size =
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
212 fmt::formatted_size(FMT_COMPILE("{:.3}"), 12.345);
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
213 EXPECT_EQ(float_size, 4);
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
214 FMT_CONSTEXPR20 size_t str_size =
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
215 fmt::formatted_size(FMT_COMPILE("{:s}"), "abc");
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
216 EXPECT_EQ(str_size, 3);
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
217 }
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
218 # endif
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
219
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
220 TEST(compile_test, text_and_arg) {
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
221 EXPECT_EQ(">>>42<<<", fmt::format(FMT_COMPILE(">>>{}<<<"), 42));
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
222 EXPECT_EQ("42!", fmt::format(FMT_COMPILE("{}!"), 42));
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Paper <paper@paper.us.eu.org>
parents:
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223 }
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
224
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
225 TEST(compile_test, unknown_format_fallback) {
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
226 EXPECT_EQ(" 42 ",
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
227 fmt::format(FMT_COMPILE("{name:^4}"), fmt::arg("name", 42)));
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
228
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
229 std::vector<char> v;
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
230 fmt::format_to(std::back_inserter(v), FMT_COMPILE("{name:^4}"),
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
231 fmt::arg("name", 42));
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
232 EXPECT_EQ(" 42 ", fmt::string_view(v.data(), v.size()));
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
233
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
234 char buffer[4];
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
235 auto result = fmt::format_to_n(buffer, 4, FMT_COMPILE("{name:^5}"),
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
236 fmt::arg("name", 42));
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
237 EXPECT_EQ(5u, result.size);
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
238 EXPECT_EQ(buffer + 4, result.out);
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
239 EXPECT_EQ(" 42 ", fmt::string_view(buffer, 4));
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
240 }
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
241
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
242 TEST(compile_test, empty) { EXPECT_EQ("", fmt::format(FMT_COMPILE(""))); }
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
243
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
244 struct to_stringable {
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
245 friend fmt::string_view to_string_view(to_stringable) { return {}; }
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Paper <paper@paper.us.eu.org>
parents:
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246 };
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
247
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
248 FMT_BEGIN_NAMESPACE
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
249 template <> struct formatter<to_stringable> {
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
250 auto parse(format_parse_context& ctx) const -> decltype(ctx.begin()) {
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
251 return ctx.begin();
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
252 }
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
253
1faa72660932 *: transfer back to cmake from autotools
Paper <paper@paper.us.eu.org>
parents:
diff changeset
254 template <typename FormatContext>
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
255 auto format(const to_stringable&, FormatContext& ctx) -> decltype(ctx.out()) {
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
256 return ctx.out();
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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:
diff changeset
258 };
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
259 FMT_END_NAMESPACE
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
260
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
261 TEST(compile_test, to_string_and_formatter) {
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
262 fmt::format(FMT_COMPILE("{}"), to_stringable());
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
263 }
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Paper <paper@paper.us.eu.org>
parents:
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264
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
265 TEST(compile_test, print) {
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
266 EXPECT_WRITE(stdout, fmt::print(FMT_COMPILE("Don't {}!"), "panic"),
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
267 "Don't panic!");
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
268 EXPECT_WRITE(stderr, fmt::print(stderr, FMT_COMPILE("Don't {}!"), "panic"),
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
269 "Don't panic!");
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Paper <paper@paper.us.eu.org>
parents:
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270 }
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
271 #endif
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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:
diff changeset
273 #if FMT_USE_NONTYPE_TEMPLATE_ARGS
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
274 TEST(compile_test, compile_format_string_literal) {
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
275 using namespace fmt::literals;
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Paper <paper@paper.us.eu.org>
parents:
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276 EXPECT_EQ("", fmt::format(""_cf));
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Paper <paper@paper.us.eu.org>
parents:
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277 EXPECT_EQ("42", fmt::format("{}"_cf, 42));
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
278 EXPECT_EQ(L"42", fmt::format(L"{}"_cf, 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:
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281
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Paper <paper@paper.us.eu.org>
parents:
diff changeset
282 // MSVS 2019 19.29.30145.0 - Support C++20 and OK.
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Paper <paper@paper.us.eu.org>
parents:
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283 // MSVS 2022 19.32.31332.0, 19.37.32826.1 - compile-test.cc(362,3): fatal error
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Paper <paper@paper.us.eu.org>
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284 // C1001: Internal compiler error.
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285 // (compiler file
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286 // 'D:\a\_work\1\s\src\vctools\Compiler\CxxFE\sl\p1\c\constexpr\constexpr.cpp',
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287 // line 8635)
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288 #if (FMT_CPLUSPLUS >= 202002L || \
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289 (FMT_CPLUSPLUS >= 201709L && FMT_GCC_VERSION >= 1002)) && \
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290 ((!defined(_GLIBCXX_RELEASE) || _GLIBCXX_RELEASE >= 10) && \
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291 (!defined(_LIBCPP_VERSION) || _LIBCPP_VERSION >= 10000) && \
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292 (!FMT_MSC_VERSION || \
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293 (FMT_MSC_VERSION >= 1928 && FMT_MSC_VERSION < 1930))) && \
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294 defined(__cpp_lib_is_constant_evaluated)
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295 template <size_t max_string_length, typename Char = char> struct test_string {
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296 template <typename T> constexpr bool operator==(const T& rhs) const noexcept {
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297 return fmt::basic_string_view<Char>(rhs).compare(buffer) == 0;
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298 }
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299 Char buffer[max_string_length]{};
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300 };
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301
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302 template <size_t max_string_length, typename Char = char, typename... Args>
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303 consteval auto test_format(auto format, const Args&... args) {
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304 test_string<max_string_length, Char> string{};
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305 fmt::format_to(string.buffer, format, args...);
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306 return string;
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307 }
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308
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309 TEST(compile_time_formatting_test, bool) {
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310 EXPECT_EQ("true", test_format<5>(FMT_COMPILE("{}"), true));
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311 EXPECT_EQ("false", test_format<6>(FMT_COMPILE("{}"), false));
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312 EXPECT_EQ("true ", test_format<6>(FMT_COMPILE("{:5}"), true));
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313 EXPECT_EQ("1", test_format<2>(FMT_COMPILE("{:d}"), true));
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314 }
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315
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316 TEST(compile_time_formatting_test, integer) {
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317 EXPECT_EQ("42", test_format<3>(FMT_COMPILE("{}"), 42));
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318 EXPECT_EQ("420", test_format<4>(FMT_COMPILE("{}"), 420));
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319 EXPECT_EQ("42 42", test_format<6>(FMT_COMPILE("{} {}"), 42, 42));
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320 EXPECT_EQ("42 42",
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Paper <paper@paper.us.eu.org>
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321 test_format<6>(FMT_COMPILE("{} {}"), uint32_t{42}, uint64_t{42}));
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Paper <paper@paper.us.eu.org>
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322
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323 EXPECT_EQ("+42", test_format<4>(FMT_COMPILE("{:+}"), 42));
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324 EXPECT_EQ("42", test_format<3>(FMT_COMPILE("{:-}"), 42));
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325 EXPECT_EQ(" 42", test_format<4>(FMT_COMPILE("{: }"), 42));
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Paper <paper@paper.us.eu.org>
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326
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Paper <paper@paper.us.eu.org>
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327 EXPECT_EQ("-0042", test_format<6>(FMT_COMPILE("{:05}"), -42));
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Paper <paper@paper.us.eu.org>
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328
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329 EXPECT_EQ("101010", test_format<7>(FMT_COMPILE("{:b}"), 42));
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330 EXPECT_EQ("0b101010", test_format<9>(FMT_COMPILE("{:#b}"), 42));
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331 EXPECT_EQ("0B101010", test_format<9>(FMT_COMPILE("{:#B}"), 42));
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332 EXPECT_EQ("042", test_format<4>(FMT_COMPILE("{:#o}"), 042));
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333 EXPECT_EQ("0x4a", test_format<5>(FMT_COMPILE("{:#x}"), 0x4a));
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Paper <paper@paper.us.eu.org>
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334 EXPECT_EQ("0X4A", test_format<5>(FMT_COMPILE("{:#X}"), 0x4a));
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Paper <paper@paper.us.eu.org>
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335
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336 EXPECT_EQ(" 42", test_format<6>(FMT_COMPILE("{:5}"), 42));
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337 EXPECT_EQ(" 42", test_format<6>(FMT_COMPILE("{:5}"), 42ll));
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338 EXPECT_EQ(" 42", test_format<6>(FMT_COMPILE("{:5}"), 42ull));
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Paper <paper@paper.us.eu.org>
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339
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340 EXPECT_EQ("42 ", test_format<5>(FMT_COMPILE("{:<4}"), 42));
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341 EXPECT_EQ(" 42", test_format<5>(FMT_COMPILE("{:>4}"), 42));
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342 EXPECT_EQ(" 42 ", test_format<5>(FMT_COMPILE("{:^4}"), 42));
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Paper <paper@paper.us.eu.org>
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343 EXPECT_EQ("**-42", test_format<6>(FMT_COMPILE("{:*>5}"), -42));
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Paper <paper@paper.us.eu.org>
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344 }
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Paper <paper@paper.us.eu.org>
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345
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346 TEST(compile_time_formatting_test, char) {
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347 EXPECT_EQ("c", test_format<2>(FMT_COMPILE("{}"), 'c'));
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Paper <paper@paper.us.eu.org>
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348
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349 EXPECT_EQ("c ", test_format<4>(FMT_COMPILE("{:3}"), 'c'));
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350 EXPECT_EQ("99", test_format<3>(FMT_COMPILE("{:d}"), 'c'));
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351 }
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Paper <paper@paper.us.eu.org>
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352
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353 TEST(compile_time_formatting_test, string) {
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354 EXPECT_EQ("42", test_format<3>(FMT_COMPILE("{}"), "42"));
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355 EXPECT_EQ("The answer is 42",
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356 test_format<17>(FMT_COMPILE("{} is {}"), "The answer", "42"));
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Paper <paper@paper.us.eu.org>
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357
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358 EXPECT_EQ("abc**", test_format<6>(FMT_COMPILE("{:*<5}"), "abc"));
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359 EXPECT_EQ("**🤡**", test_format<9>(FMT_COMPILE("{:*^6}"), "🤡"));
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Paper <paper@paper.us.eu.org>
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360 }
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Paper <paper@paper.us.eu.org>
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361
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Paper <paper@paper.us.eu.org>
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362 TEST(compile_time_formatting_test, combination) {
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Paper <paper@paper.us.eu.org>
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363 EXPECT_EQ("420, true, answer",
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Paper <paper@paper.us.eu.org>
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364 test_format<18>(FMT_COMPILE("{}, {}, {}"), 420, true, "answer"));
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Paper <paper@paper.us.eu.org>
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365
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366 EXPECT_EQ(" -42", test_format<5>(FMT_COMPILE("{:{}}"), -42, 4));
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367 }
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368
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369 TEST(compile_time_formatting_test, custom_type) {
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370 EXPECT_EQ("foo", test_format<4>(FMT_COMPILE("{}"), test_formattable()));
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371 EXPECT_EQ("bar", test_format<4>(FMT_COMPILE("{:b}"), test_formattable()));
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372 }
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Paper <paper@paper.us.eu.org>
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373
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Paper <paper@paper.us.eu.org>
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374 TEST(compile_time_formatting_test, multibyte_fill) {
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375 EXPECT_EQ("жж42", test_format<8>(FMT_COMPILE("{:ж>4}"), 42));
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Paper <paper@paper.us.eu.org>
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376 }
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Paper <paper@paper.us.eu.org>
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377 #endif