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Workaround a bug in formatting long double in MinGW

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This commit is contained in:
vitaut 2015-05-07 07:18:46 -07:00
parent 1c72e7062b
commit 673a4525f6
1 changed files with 19 additions and 3 deletions
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22
test/format-test.cc
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@ -72,15 +72,31 @@ using fmt::pad;
namespace {
// Format value using the standard library.
template <typename Char, typename T>
std::basic_string<Char> std_format(const T &value) {
std::basic_ostringstream<Char> os;
os << value;
return os.str();
}
#ifdef __MINGW32__
// Workaround a bug in formatting long double in MinGW.
template <typename Char>
std::basic_string<Char> std_format(long double value) {
char buffer[100];
sprintf_s(buffer, sizeof(buffer), "%Lg", value);
return buffer;
}
#endif
// Checks if writing value to BasicWriter<Char> produces the same result
// as writing it to std::basic_ostringstream<Char>.
template <typename Char, typename T>
::testing::AssertionResult check_write(const T &value, const char *type) {
std::basic_ostringstream<Char> os;
os << value;
std::basic_string<Char> expected = os.str();
std::basic_string<Char> actual =
(fmt::BasicMemoryWriter<Char>() << value).str();
std::basic_string<Char> expected = std_format<Char>(value);
if (expected == actual)
return ::testing::AssertionSuccess();
return ::testing::AssertionFailure()