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annotate dep/fmt/test/compile-error-test/CMakeLists.txt @ 358:53c92e8968d5

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CI: cleanup; remove source URL
author Paper <paper@paper.us.eu.org>
date Mon, 15 Jul 2024 01:01:52 -0400
parents 1faa72660932
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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343
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1 # Test if compile errors are produced where necessary.
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2
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3 cmake_minimum_required(VERSION 3.8...3.25)
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4 project(compile-error-test CXX)
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5
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6 set(fmt_headers "
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7 #include <fmt/format.h>
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8 #include <fmt/xchar.h>
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9 #include <fmt/ostream.h>
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10 #include <iostream>
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11 ")
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12
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13 set(error_test_names "")
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14 set(non_error_test_content "")
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15
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16 # For error tests (we expect them to produce compilation error):
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17 # * adds a name of test into `error_test_names` list
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18 # * generates a single source file (with the same name) for each test
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19 # For non-error tests (we expect them to compile successfully):
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20 # * adds a code segment as separate function to `non_error_test_content`
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21 function (expect_compile name code_fragment)
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22 cmake_parse_arguments(EXPECT_COMPILE "ERROR" "" "" ${ARGN})
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23 string(MAKE_C_IDENTIFIER "${name}" test_name)
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24
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25 if (EXPECT_COMPILE_ERROR)
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26 file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/test/${test_name}.cc" "
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27 ${fmt_headers}
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28 void ${test_name}() {
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29 ${code_fragment}
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30 }
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31 ")
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32 set(error_test_names_copy "${error_test_names}")
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33 list(APPEND error_test_names_copy "${test_name}")
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34 set(error_test_names "${error_test_names_copy}" PARENT_SCOPE)
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35 else()
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36 set(non_error_test_content "
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37 ${non_error_test_content}
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38 void ${test_name}() {
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39 ${code_fragment}
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40 }" PARENT_SCOPE)
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41 endif()
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42 endfunction ()
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43
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44 # Generates a source file for non-error test with `non_error_test_content` and
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45 # CMake project file with all error and single non-error test targets.
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46 function (run_tests)
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47 set(cmake_targets "")
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48 foreach(test_name IN LISTS error_test_names)
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49 set(cmake_targets "
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50 ${cmake_targets}
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51 add_library(test-${test_name} ${test_name}.cc)
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52 target_link_libraries(test-${test_name} PRIVATE fmt::fmt)
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53 ")
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54 endforeach()
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55
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56 file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/test/non_error_test.cc" "
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57 ${fmt_headers}
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58 ${non_error_test_content}
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59 ")
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60 set(cmake_targets "
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61 ${cmake_targets}
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62 add_library(non-error-test non_error_test.cc)
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63 target_link_libraries(non-error-test PRIVATE fmt::fmt)
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64 ")
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65
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66 file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/test/CMakeLists.txt" "
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67 cmake_minimum_required(VERSION 3.8...3.25)
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68 project(tests CXX)
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69 add_subdirectory(${FMT_DIR} fmt)
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70 ${cmake_targets}
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71 ")
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72
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73 set(build_directory "${CMAKE_CURRENT_BINARY_DIR}/test/build")
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74 file(MAKE_DIRECTORY "${build_directory}")
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75 execute_process(
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76 COMMAND
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77 "${CMAKE_COMMAND}"
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78 "-DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER}"
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79 "-DCMAKE_CXX_FLAGS=${CMAKE_CXX_FLAGS}"
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80 "-DCMAKE_CXX_STANDARD=${CMAKE_CXX_STANDARD}"
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81 "-DCMAKE_GENERATOR=${CMAKE_GENERATOR}"
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82 "-DCMAKE_MAKE_PROGRAM=${CMAKE_MAKE_PROGRAM}"
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83 "-DFMT_DIR=${FMT_DIR}"
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84 "${CMAKE_CURRENT_BINARY_DIR}/test"
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85 WORKING_DIRECTORY "${build_directory}"
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86 RESULT_VARIABLE result_var
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87 OUTPUT_VARIABLE output_var
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88 ERROR_VARIABLE output_var)
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89 if (NOT result_var EQUAL 0)
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90 message(FATAL_ERROR "Unable to configure:\n${output_var}")
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91 endif()
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92
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93 foreach(test_name IN LISTS error_test_names)
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94 execute_process(
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95 COMMAND
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96 "${CMAKE_COMMAND}" --build "${build_directory}" --target "test-${test_name}"
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97 WORKING_DIRECTORY "${build_directory}"
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98 RESULT_VARIABLE result_var
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99 OUTPUT_VARIABLE output_var
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100 ERROR_QUIET)
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101 if (result_var EQUAL 0)
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102 message(SEND_ERROR "No compile error for \"${test_name}\":\n${output_var}")
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103 endif ()
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104 endforeach()
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105
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106 execute_process(
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107 COMMAND
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108 "${CMAKE_COMMAND}" --build "${build_directory}" --target "non-error-test"
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109 WORKING_DIRECTORY "${build_directory}"
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110 RESULT_VARIABLE result_var
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111 OUTPUT_VARIABLE output_var
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112 ERROR_VARIABLE output_var)
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113 if (NOT result_var EQUAL 0)
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114 message(SEND_ERROR "Compile error for combined non-error test:\n${output_var}")
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115 endif ()
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116 endfunction ()
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117
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118
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119 # check if the source file skeleton compiles
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120 expect_compile(check "")
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121 expect_compile(check-error "compilation_error" ERROR)
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122
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123 # Formatting a wide character with a narrow format string is forbidden.
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124 expect_compile(wide-character-narrow-format-string "fmt::format(L\"{}\", L'a');")
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125 expect_compile(wide-character-narrow-format-string-error "fmt::format(\"{}\", L'a');" ERROR)
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126
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127 # Formatting a wide string with a narrow format string is forbidden.
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128 expect_compile(wide-string-narrow-format-string "fmt::format(L\"{}\", L\"foo\");")
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129 expect_compile(wide-string-narrow-format-string-error "fmt::format(\"{}\", L\"foo\");" ERROR)
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130
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131 # Formatting a narrow string with a wide format string is forbidden because
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132 # mixing UTF-8 with UTF-16/32 can result in an invalid output.
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133 expect_compile(narrow-string-wide-format-string "fmt::format(L\"{}\", L\"foo\");")
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134 expect_compile(narrow-string-wide-format-string-error "fmt::format(L\"{}\", \"foo\");" ERROR)
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135
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136 expect_compile(cast-to-string "
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137 struct S {
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138 operator std::string() const { return std::string(); }
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139 };
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140 fmt::format(\"{}\", std::string(S()));
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141 ")
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142 expect_compile(cast-to-string-error "
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143 struct S {
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144 operator std::string() const { return std::string(); }
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145 };
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146 fmt::format(\"{}\", S());
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147 " ERROR)
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148
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149 # Formatting a function
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150 expect_compile(format-function "
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151 void (*f)();
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152 fmt::format(\"{}\", fmt::ptr(f));
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153 ")
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154 expect_compile(format-function-error "
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155 void (*f)();
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156 fmt::format(\"{}\", f);
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157 " ERROR)
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158
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159 # Formatting an unformattable argument should always be a compile time error
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160 expect_compile(format-lots-of-arguments-with-unformattable "
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161 struct E {};
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162 fmt::format(\"\", 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, E());
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163 " ERROR)
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164 expect_compile(format-lots-of-arguments-with-function "
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165 void (*f)();
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166 fmt::format(\"\", 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, f);
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167 " ERROR)
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168
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169 # Check if user-defined literals are available
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170 include(CheckCXXSourceCompiles)
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171 set(CMAKE_REQUIRED_FLAGS ${CXX_STANDARD_FLAG})
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172 check_cxx_source_compiles("
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173 void operator\"\" _udl(long double);
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174 int main() {}"
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175 SUPPORTS_USER_DEFINED_LITERALS)
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176 set(CMAKE_REQUIRED_FLAGS )
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177 if (NOT SUPPORTS_USER_DEFINED_LITERALS)
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178 set (SUPPORTS_USER_DEFINED_LITERALS OFF)
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179 endif ()
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180
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181 # Make sure that compiler features detected in the header
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182 # match the features detected in CMake.
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183 if (SUPPORTS_USER_DEFINED_LITERALS)
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184 set(supports_udl 1)
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185 else ()
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186 set(supports_udl 0)
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187 endif ()
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188 expect_compile(udl-check "
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189 #if FMT_USE_USER_DEFINED_LITERALS != ${supports_udl}
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190 # error
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191 #endif
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192 ")
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193
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194 if (CMAKE_CXX_STANDARD GREATER_EQUAL 20)
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195 # Compile-time argument type check
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196 expect_compile(format-string-number-spec "
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197 #ifdef FMT_HAS_CONSTEVAL
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198 fmt::format(\"{:d}\", 42);
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199 #endif
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200 ")
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201 expect_compile(format-string-number-spec-error "
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202 #ifdef FMT_HAS_CONSTEVAL
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203 fmt::format(\"{:d}\", \"I am not a number\");
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204 #else
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205 #error
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206 #endif
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207 " ERROR)
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208 expect_compile(print-string-number-spec-error "
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209 #ifdef FMT_HAS_CONSTEVAL
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210 fmt::print(\"{:d}\", \"I am not a number\");
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211 #else
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212 #error
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213 #endif
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214 " ERROR)
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215 expect_compile(print-stream-string-number-spec-error "
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216 #ifdef FMT_HAS_CONSTEVAL
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217 fmt::print(std::cout, \"{:d}\", \"I am not a number\");
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218 #else
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219 #error
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220 #endif
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221 " ERROR)
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222
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223 # Compile-time argument name check
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224 expect_compile(format-string-name "
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225 #if defined(FMT_HAS_CONSTEVAL) && FMT_USE_NONTYPE_TEMPLATE_ARGS
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226 using namespace fmt::literals;
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227 fmt::print(\"{foo}\", \"foo\"_a=42);
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228 #endif
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229 ")
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230 expect_compile(format-string-name-error "
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231 #if defined(FMT_HAS_CONSTEVAL) && FMT_USE_NONTYPE_TEMPLATE_ARGS
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232 using namespace fmt::literals;
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233 fmt::print(\"{foo}\", \"bar\"_a=42);
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234 #else
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235 #error
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236 #endif
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237 " ERROR)
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238 endif ()
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239
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240 # Run all tests
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Paper <paper@paper.us.eu.org>
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241 run_tests()