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Fix the build with C++ where __builtin_types_compatible_p is not allowed.

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This commit is contained in:
David Chisnall 2013-07-12 11:03:51 +00:00
parent 9beae6b545
commit 1583bcb4ee
1 changed files with 3 additions and 2 deletions
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5
lib/msun/src/math.h
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@ -81,12 +81,13 @@ extern const union __nan_un {
#define FP_SUBNORMAL 0x08
#define FP_ZERO 0x10
#if __STDC_VERSION__ >= 201112L && defined(__clang__)
#if (__STDC_VERSION__ >= 201112L && defined(__clang__)) || \
__has_extension(c_generic_selections)
#define __fp_type_select(x, f, d, ld) _Generic((x), \
float: f(x), \
double: d(x), \
long double: ld(x))
#elif __GNUC_PREREQ__(3, 1)
#elif __GNUC_PREREQ__(3, 1) && !defined(__cplusplus)
#define __fp_type_select(x, f, d, ld) __builtin_choose_expr( \
__builtin_types_compatible_p(__typeof(x), long double), ld(x), \
__builtin_choose_expr( \