diff options
author | Hans-Peter Nilsson <hp@axis.com> | 2022-03-22 22:53:02 +0100 |
---|---|---|
committer | Hans-Peter Nilsson <hp@axis.com> | 2022-03-22 22:53:02 +0100 |
commit | 5d2233f4033dfa37ad88dc2eab138524fe64242e (patch) | |
tree | 8edb19ba6ba74b6dc4332a27c4440fcfad8dce47 /libstdc++-v3 | |
parent | 4b7d9f8f51bd96d290aac230c71e501fcb6b21a6 (diff) |
libstdc++-v3 testsuite: Call fesetround(FE_DOWNWARD) only if defined
Without this, for a typical soft-float target such as cris-elf, after
commit r12-7676-g5a4e208022e704 you'll see, in libstdc++.log:
...
FAIL: 20_util/from_chars/6.cc (test for excess errors)
Excess errors:
/home/hp/tmp/auto0321/gcc/libstdc++-v3/testsuite/20_util/from_chars/6.cc:33: error: 'FE_DOWNWARD' was not declared in this scope
UNRESOLVED: 20_util/from_chars/6.cc compilation failed to produce executable
...
It appears to be a side-effect of that commit changing the
way __cpp_lib_to_chars is defined. (On the bright side,
./7.cc now passes since that commit.)
TFM, specifically fenv(3), says that "Each of the macros
FE_DIVBYZERO, FE_INEXACT, FE_INVALID, FE_OVERFLOW,
FE_UNDERFLOW is defined when the implementation supports
handling of the corresponding exception".
A git-grep shows that this was the only place using a FE_ macro
unconditionally.
libstdc++-v3:
* testsuite/20_util/from_chars/6.cc (test01) [FE_DOWNWARD]:
Conditionalize call to fesetround.
Diffstat (limited to 'libstdc++-v3')
-rw-r--r-- | libstdc++-v3/testsuite/20_util/from_chars/6.cc | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/libstdc++-v3/testsuite/20_util/from_chars/6.cc b/libstdc++-v3/testsuite/20_util/from_chars/6.cc index d33484cebfe..fff3450b56c 100644 --- a/libstdc++-v3/testsuite/20_util/from_chars/6.cc +++ b/libstdc++-v3/testsuite/20_util/from_chars/6.cc @@ -30,7 +30,9 @@ test01() #if __cpp_lib_to_chars >= 201611L #if _GLIBCXX_USE_C99_FENV_TR1 double d; +#ifdef FE_DOWNWARD std::fesetround(FE_DOWNWARD); +#endif const std::string s = "0.099999999999999999999999999"; auto res = std::from_chars(s.data(), s.data() + s.length(), d); VERIFY( res.ec == std::errc{} ); |