diff options
| author | A. Jiang <de34@live.cn> | 2024-10-26 13:46:59 +0800 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2024-10-26 13:46:59 +0800 |
| commit | 3fc0d94ce57de2d0841e77c8fda7feef2923c4e0 (patch) | |
| tree | 09d30b071f86e3cc7fa8746f07bbc1a946350fc2 | |
| parent | 13d6233e77982f2a596922a79365373e1466a968 (diff) | |
[libc++][test] Make macro detection more friendly to MSVC (#113633)
MSVC STL's test suite is a bit nervous about replacing non-macro-defined
identifiers with `0` (see also
https://learn.microsoft.com/en-us/cpp/error-messages/compiler-warnings/compiler-warning-level-4-c4668?view=msvc-170).
On MSVC (and MS-compatible mode of other compilers), `long double` has
the same format (IEEE-754 binary64) as `double`, so it should be OK to
define `TEST_LONG_DOUBLE_IS_DOUBLE` when `_MSC_VER` is defined. Such
detection should be performed first.
| -rw-r--r-- | libcxx/test/support/test_macros.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libcxx/test/support/test_macros.h b/libcxx/test/support/test_macros.h index 5ef14e54dae2..1b6473b623c5 100644 --- a/libcxx/test/support/test_macros.h +++ b/libcxx/test/support/test_macros.h @@ -511,7 +511,7 @@ inline Tp const& DoNotOptimize(Tp const& value) { # define TEST_CONSTEXPR_OPERATOR_NEW #endif -#if __SIZEOF_LONG_DOUBLE__ == __SIZEOF_DOUBLE__ +#if defined(_MSC_VER) || __SIZEOF_LONG_DOUBLE__ == __SIZEOF_DOUBLE__ # define TEST_LONG_DOUBLE_IS_DOUBLE #endif |