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5 Commits

Author SHA1 Message Date
Victor Zverovich
3391f9e992 Cleanup test 2025-11-22 19:14:32 -08:00
friedkeenan
9f197b22ae
Make FMT_STRING redundant when FMT_USE_CONSTEVAL is enabled (#4612) 2025-11-22 14:36:29 -08:00
Victor Zverovich
f20b16617e Fix formatting 2025-11-22 13:48:03 -08:00
Victor Zverovich
14451704d5 Opt out std::complex from tuple formatting 2025-11-22 08:23:11 -08:00
Victor Zverovich
7a0da1c68a Merge compile-time FP tests into other compile-time tests 2025-11-22 07:46:38 -08:00
6 changed files with 49 additions and 79 deletions

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@ -493,8 +493,8 @@ template <typename OutputIt,
#if FMT_CLANG_VERSION >= 307 && !FMT_ICC_VERSION
__attribute__((no_sanitize("undefined")))
#endif
FMT_CONSTEXPR20 inline auto reserve(OutputIt it, size_t n) ->
typename OutputIt::value_type* {
FMT_CONSTEXPR20 inline auto
reserve(OutputIt it, size_t n) -> typename OutputIt::value_type* {
auto& c = get_container(it);
size_t size = c.size();
c.resize(size + n);
@ -4257,7 +4257,11 @@ class format_int {
* // A compile-time error because 'd' is an invalid specifier for strings.
* std::string s = fmt::format(FMT_STRING("{:d}"), "foo");
*/
#define FMT_STRING(s) FMT_STRING_IMPL(s, fmt::detail::compile_string)
#if FMT_USE_CONSTEVAL
# define FMT_STRING(s) s
#else
# define FMT_STRING(s) FMT_STRING_IMPL(s, fmt::detail::compile_string)
#endif // FMT_USE_CONSTEVAL
FMT_API auto vsystem_error(int error_code, string_view fmt, format_args args)
-> std::system_error;

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@ -647,6 +647,11 @@ struct formatter<std::atomic_flag, Char> : formatter<bool, Char> {
};
#endif // __cpp_lib_atomic_flag_test
template <typename T> struct is_tuple_like;
template <typename T>
struct is_tuple_like<std::complex<T>> : std::false_type {};
template <typename T, typename Char> struct formatter<std::complex<T>, Char> {
private:
detail::dynamic_format_specs<Char> specs_;

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@ -62,11 +62,6 @@ if (NOT (MSVC AND BUILD_SHARED_LIBS))
endif ()
add_fmt_test(ostream-test)
add_fmt_test(compile-test)
add_fmt_test(compile-fp-test)
if (MSVC)
# Without this option, MSVC returns 199711L for the __cplusplus macro.
target_compile_options(compile-fp-test PRIVATE /Zc:__cplusplus)
endif()
add_fmt_test(printf-test)
add_fmt_test(ranges-test ranges-odr-test.cc)
add_fmt_test(no-builtin-types-test HEADER_ONLY)

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@ -1,62 +0,0 @@
// Formatting library for C++ - formatting library tests
//
// Copyright (c) 2012 - present, Victor Zverovich
// All rights reserved.
//
// For the license information refer to format.h.
#include "fmt/compile.h"
#include "gmock/gmock.h"
#if FMT_USE_CONSTEVAL
template <size_t max_string_length, typename Char = char> struct test_string {
Char buffer[max_string_length] = {};
template <typename T> constexpr bool operator==(const T& rhs) const noexcept {
return fmt::basic_string_view<Char>(rhs).compare(buffer) == 0;
}
};
template <size_t max_string_length, typename Char = char, typename... Args>
consteval auto test_format(auto format, const Args&... args) {
test_string<max_string_length, Char> string{};
fmt::format_to(string.buffer, format, args...);
return string;
}
TEST(compile_time_formatting_test, floating_point) {
EXPECT_EQ("0", test_format<2>(FMT_COMPILE("{}"), 0.0f));
EXPECT_EQ("392.500000", test_format<11>(FMT_COMPILE("{0:f}"), 392.5f));
EXPECT_EQ("0", test_format<2>(FMT_COMPILE("{:}"), 0.0));
EXPECT_EQ("0.000000", test_format<9>(FMT_COMPILE("{:f}"), 0.0));
EXPECT_EQ("0", test_format<2>(FMT_COMPILE("{:g}"), 0.0));
EXPECT_EQ("392.65", test_format<7>(FMT_COMPILE("{:}"), 392.65));
EXPECT_EQ("392.65", test_format<7>(FMT_COMPILE("{:g}"), 392.65));
EXPECT_EQ("392.65", test_format<7>(FMT_COMPILE("{:G}"), 392.65));
EXPECT_EQ("4.9014e+06", test_format<11>(FMT_COMPILE("{:g}"), 4.9014e6));
EXPECT_EQ("-392.650000", test_format<12>(FMT_COMPILE("{:f}"), -392.65));
EXPECT_EQ("-392.650000", test_format<12>(FMT_COMPILE("{:F}"), -392.65));
EXPECT_EQ("3.926500e+02", test_format<13>(FMT_COMPILE("{0:e}"), 392.65));
EXPECT_EQ("3.926500E+02", test_format<13>(FMT_COMPILE("{0:E}"), 392.65));
EXPECT_EQ("+0000392.6", test_format<11>(FMT_COMPILE("{0:+010.4g}"), 392.65));
EXPECT_EQ("9223372036854775808.000000",
test_format<27>(FMT_COMPILE("{:f}"), 9223372036854775807.0));
constexpr double nan = std::numeric_limits<double>::quiet_NaN();
EXPECT_EQ("nan", test_format<4>(FMT_COMPILE("{}"), nan));
EXPECT_EQ("+nan", test_format<5>(FMT_COMPILE("{:+}"), nan));
if (std::signbit(-nan))
EXPECT_EQ("-nan", test_format<5>(FMT_COMPILE("{}"), -nan));
else
fmt::print("Warning: compiler doesn't handle negative NaN correctly");
constexpr double inf = std::numeric_limits<double>::infinity();
EXPECT_EQ("inf", test_format<4>(FMT_COMPILE("{}"), inf));
EXPECT_EQ("+inf", test_format<5>(FMT_COMPILE("{:+}"), inf));
EXPECT_EQ("-inf", test_format<5>(FMT_COMPILE("{}"), -inf));
}
#endif // FMT_USE_CONSTEVAL

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@ -417,6 +417,40 @@ TEST(compile_time_formatting_test, custom_type) {
TEST(compile_time_formatting_test, multibyte_fill) {
EXPECT_EQ("жж42", test_format<8>(FMT_COMPILE("{:ж>4}"), 42));
}
TEST(compile_time_formatting_test, floating_point) {
EXPECT_EQ("0", test_format<2>(FMT_COMPILE("{}"), 0.0f));
EXPECT_EQ("392.500000", test_format<11>(FMT_COMPILE("{0:f}"), 392.5f));
EXPECT_EQ("0", test_format<2>(FMT_COMPILE("{:}"), 0.0));
EXPECT_EQ("0.000000", test_format<9>(FMT_COMPILE("{:f}"), 0.0));
EXPECT_EQ("0", test_format<2>(FMT_COMPILE("{:g}"), 0.0));
EXPECT_EQ("392.65", test_format<7>(FMT_COMPILE("{:}"), 392.65));
EXPECT_EQ("392.65", test_format<7>(FMT_COMPILE("{:g}"), 392.65));
EXPECT_EQ("392.65", test_format<7>(FMT_COMPILE("{:G}"), 392.65));
EXPECT_EQ("4.9014e+06", test_format<11>(FMT_COMPILE("{:g}"), 4.9014e6));
EXPECT_EQ("-392.650000", test_format<12>(FMT_COMPILE("{:f}"), -392.65));
EXPECT_EQ("-392.650000", test_format<12>(FMT_COMPILE("{:F}"), -392.65));
EXPECT_EQ("3.926500e+02", test_format<13>(FMT_COMPILE("{0:e}"), 392.65));
EXPECT_EQ("3.926500E+02", test_format<13>(FMT_COMPILE("{0:E}"), 392.65));
EXPECT_EQ("+0000392.6", test_format<11>(FMT_COMPILE("{0:+010.4g}"), 392.65));
EXPECT_EQ("9223372036854775808.000000",
test_format<27>(FMT_COMPILE("{:f}"), 9223372036854775807.0));
constexpr double nan = std::numeric_limits<double>::quiet_NaN();
EXPECT_EQ("nan", test_format<4>(FMT_COMPILE("{}"), nan));
EXPECT_EQ("+nan", test_format<5>(FMT_COMPILE("{:+}"), nan));
if (std::signbit(-nan))
EXPECT_EQ("-nan", test_format<5>(FMT_COMPILE("{}"), -nan));
else
fmt::print("Warning: compiler doesn't handle negative NaN correctly");
constexpr double inf = std::numeric_limits<double>::infinity();
EXPECT_EQ("inf", test_format<4>(FMT_COMPILE("{}"), inf));
EXPECT_EQ("+inf", test_format<5>(FMT_COMPILE("{:+}"), inf));
EXPECT_EQ("-inf", test_format<5>(FMT_COMPILE("{}"), -inf));
}
#endif
#if FMT_USE_CONSTEXPR_STRING

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@ -2036,9 +2036,6 @@ TEST(format_test, unpacked_args) {
6, 7, 8, 9, 'a', 'b', 'c', 'd', 'e', 'f', 'g'));
}
constexpr char with_null[3] = {'{', '}', '\0'};
static constexpr char static_with_null[3] = {'{', '}', '\0'};
TEST(format_test, compile_time_string) {
EXPECT_EQ(fmt::format(FMT_STRING("foo")), "foo");
EXPECT_EQ(fmt::format(FMT_STRING("{}"), 42), "42");
@ -2053,15 +2050,12 @@ TEST(format_test, compile_time_string) {
EXPECT_EQ(fmt::format(FMT_STRING("{} {two}"), 1, "two"_a = 2), "1 2");
#endif
(void)static_with_null;
static constexpr char format_str[3] = {'{', '}', '\0'};
(void)format_str;
#ifndef _MSC_VER
EXPECT_EQ(fmt::format(FMT_STRING(static_with_null), 42), "42");
EXPECT_EQ(fmt::format(FMT_STRING(format_str), 42), "42");
#endif
(void)with_null;
#if FMT_CPLUSPLUS >= 201703L
EXPECT_EQ(fmt::format(FMT_STRING(with_null), 42), "42");
#endif
#if defined(FMT_USE_STRING_VIEW) && FMT_CPLUSPLUS >= 201703L
EXPECT_EQ(fmt::format(FMT_STRING(std::string_view("{}")), 42), "42");
#endif