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| author | Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com> | 2018-05-11 18:05:03 -0300 |
|---|---|---|
| committer | Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com> | 2018-05-11 18:05:03 -0300 |
| commit | 5db7d705db472f47a349fe342a8d7150ec922786 (patch) | |
| tree | bd3d1a77f9d27ccacca0dcdb13313fd8a191b2ce /math/math.h | |
| parent | b4d5b8b02133e0c317e6c836b51bbee3b00877b8 (diff) | |
| download | glibc-5db7d705db472f47a349fe342a8d7150ec922786.tar.gz glibc-5db7d705db472f47a349fe342a8d7150ec922786.tar.xz glibc-5db7d705db472f47a349fe342a8d7150ec922786.zip | |
powerpc: Fix the compiler type used with C++ when -mabi=ieeelongdouble
When compiling C++ code with -mabi=ieeelongdouble, KCtype is unavailable and the long double type should be used instead. This is also providing macro __HAVE_FLOAT128_UNLIKE_LDBL in order to identify the kind of long double type is being used in the current compilation unit. Notice that bits/floatn.h cannot benefit from the new macro due to order of header inclusion. * bits/floatn-common.h: Define __HAVE_FLOAT128_UNLIKE_LDBL. * math/math.h: Restrict the prototype definition for the functions issignaling(_Float128) and iszero(_Float128); and template __iseqsig_type<_Float128>, from __HAVE_DISTINCT_FLOAT128 to __HAVE_FLOAT128_UNLIKE_LDBL. * sysdeps/powerpc/bits/floatn.h [__HAVE_FLOAT128 && (!__GNUC_PREREQ (7, 0) || defined __cplusplus) && __LDBL_MANT_DIG__ == 113]: Use long double suffix for __f128() constants; define the type _Float128 as long double; and reuse long double in __CFLOAT128. Signed-off-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>
Diffstat (limited to 'math/math.h')
| -rw-r--r-- | math/math.h | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/math/math.h b/math/math.h index 2e2696854b..87240336e0 100644 --- a/math/math.h +++ b/math/math.h @@ -989,7 +989,9 @@ issignaling (long double __val) return __issignalingl (__val); # endif } -# if __HAVE_DISTINCT_FLOAT128 +# if __HAVE_FLOAT128_UNLIKE_LDBL +/* When using an IEEE 128-bit long double, _Float128 is defined as long double + in C++. */ inline int issignaling (_Float128 __val) { return __issignalingf128 (__val); } # endif } /* extern C++ */ @@ -1027,7 +1029,9 @@ iszero (long double __val) return __fpclassifyl (__val) == FP_ZERO; # endif } -# if __HAVE_DISTINCT_FLOAT128 +# if __HAVE_FLOAT128_UNLIKE_LDBL + /* When using an IEEE 128-bit long double, _Float128 is defined as long double + in C++. */ inline int iszero (_Float128 __val) { @@ -1517,7 +1521,9 @@ template<> struct __iseqsig_type<long double> } }; -# if __HAVE_DISTINCT_FLOAT128 +# if __HAVE_FLOAT128_UNLIKE_LDBL + /* When using an IEEE 128-bit long double, _Float128 is defined as long double + in C++. */ template<> struct __iseqsig_type<_Float128> { static int __call (_Float128 __x, _Float128 __y) throw () |