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Work around UDL macro stringification bug on some versions of GCC

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See bug report: https://gcc.gnu.org/ml/gcc-bugs/2015-04/msg02027.html
This commit is contained in:
Dean Moldovan 2015-10-09 11:55:36 +02:00
parent bc6010cc21
commit c0813c59f3
1 changed files with 14 additions and 6 deletions
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20
test/format-test.cc
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@ -1604,23 +1604,31 @@ TEST(FormatTest, MaxArgs) {
}
#if FMT_USE_USER_DEFINED_LITERALS
// Passing user-defined literals directly to EXPECT_EQ causes problems
// with macro argument stringification (#) on some versions of GCC.
// Workaround: Assing the UDL result to a variable before the macro.
using namespace fmt::literals;
TEST(LiteralsTest, Format) {
EXPECT_EQ(format("{}c{}", "ab", 1), "{}c{}"_format("ab", 1));
EXPECT_EQ(format(L"{}c{}", L"ab", 1), L"{}c{}"_format(L"ab", 1));
auto udl_format = "{}c{}"_format("ab", 1);
EXPECT_EQ(format("{}c{}", "ab", 1), udl_format);
auto udl_format_w = L"{}c{}"_format(L"ab", 1);
EXPECT_EQ(format(L"{}c{}", L"ab", 1), udl_format_w);
}
TEST(LiteralsTest, NamedArg) {
auto udl_a = format("{first}{second}{first}{third}",
"first"_a="abra", "second"_a="cad", "third"_a=99);
EXPECT_EQ(format("{first}{second}{first}{third}",
fmt::arg("first", "abra"), fmt::arg("second", "cad"),
fmt::arg("third", 99)),
format("{first}{second}{first}{third}",
"first"_a="abra", "second"_a="cad", "third"_a=99));
udl_a);
auto udl_a_w = format(L"{first}{second}{first}{third}",
L"first"_a=L"abra", L"second"_a=L"cad", L"third"_a=99);
EXPECT_EQ(format(L"{first}{second}{first}{third}",
fmt::arg(L"first", L"abra"), fmt::arg(L"second", L"cad"),
fmt::arg(L"third", 99)),
format(L"{first}{second}{first}{third}",
L"first"_a=L"abra", L"second"_a=L"cad", L"third"_a=99));
udl_a_w);
}
#endif // FMT_USE_USER_DEFINED_LITERALS