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author | ed <ed@FreeBSD.org> | 2013-05-25 18:55:55 +0000 |
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committer | ed <ed@FreeBSD.org> | 2013-05-25 18:55:55 +0000 |
commit | baa7787a1615684fed0bcb39383aab75f401c649 (patch) | |
tree | c8bfcd898a80d02008fb3212e1917663c53c3079 /include/complex.h | |
parent | 634ea6b615fbf8877ee1b0cb332bcd551fcb6249 (diff) | |
download | FreeBSD-src-baa7787a1615684fed0bcb39383aab75f401c649.zip FreeBSD-src-baa7787a1615684fed0bcb39383aab75f401c649.tar.gz |
Add C11 macros CMPLX(), CMPLXF() and CMPLXL().
Clang allows us to initialize complex numbers using an array
initializer, casted to a complex type. GCC has a builtin called
__builtin_complex().
Diffstat (limited to 'include/complex.h')
-rw-r--r-- | include/complex.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/complex.h b/include/complex.h index 0702541..e777082 100644 --- a/include/complex.h +++ b/include/complex.h @@ -46,6 +46,18 @@ _Static_assert(__generic(_Complex_I, float _Complex, 1, 0), #define complex _Complex #define I _Complex_I +#if __ISO_C_VISIBLE >= 2011 +#ifdef __clang__ +#define CMPLX(x, y) ((double complex){ x, y }) +#define CMPLXF(x, y) ((float complex){ x, y }) +#define CMPLXL(x, y) ((long double complex){ x, y }) +#elif __GNUC_PREREQ__(4, 7) +#define CMPLX(x, y) __builtin_complex((double)(x), (double)(y)) +#define CMPLXF(x, y) __builtin_complex((float)(x), (float)(y)) +#define CMPLXL(x, y) __builtin_complex((long double)(x), (long double)(y)) +#endif +#endif /* __ISO_C_VISIBLE >= 2011 */ + __BEGIN_DECLS double cabs(double complex); |