diff options
| author | Rajalakshmi Srinivasaraghavan <raji@linux.vnet.ibm.com> | 2016-06-16 21:21:26 +0530 |
|---|---|---|
| committer | Rajalakshmi Srinivasaraghavan <raji@linux.vnet.ibm.com> | 2016-06-16 21:37:45 +0530 |
| commit | 41a359e22f3a85a570bd5fd94496d02959fe8394 (patch) | |
| tree | b07e8945a063a025f34f92e910bf8fb1e2e220d5 /math/tgmath.h | |
| parent | f45eb078922a5c64343a8da2d17fec54c27f8704 (diff) | |
| download | glibc-41a359e22f3a85a570bd5fd94496d02959fe8394.tar glibc-41a359e22f3a85a570bd5fd94496d02959fe8394.tar.gz glibc-41a359e22f3a85a570bd5fd94496d02959fe8394.tar.bz2 glibc-41a359e22f3a85a570bd5fd94496d02959fe8394.zip | |
Add nextup and nextdown math functions
TS 18661 adds nextup and nextdown functions alongside nextafter to provide
support for float128 equivalent to it. This patch adds nextupl, nextup,
nextupf, nextdownl, nextdown and nextdownf to libm before float128 support.
The nextup functions return the next representable value in the direction of
positive infinity and the nextdown functions return the next representable
value in the direction of negative infinity. These are currently enabled
as GNU extensions.
Diffstat (limited to 'math/tgmath.h')
| -rw-r--r-- | math/tgmath.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/math/tgmath.h b/math/tgmath.h index ea2b611f15..8916fbe39c 100644 --- a/math/tgmath.h +++ b/math/tgmath.h @@ -392,6 +392,13 @@ prevailing rounding mode. */ #define rint(Val) __TGMATH_UNARY_REAL_ONLY (Val, rint) +#ifdef __USE_GNU +/* Return X - epsilon. */ +# define nextdown(Val) __TGMATH_UNARY_REAL_ONLY (Val, nextdown) +/* Return X + epsilon. */ +# define nextup(Val) __TGMATH_UNARY_REAL_ONLY (Val, nextup) +#endif + /* Return X + epsilon if X < Y, X - epsilon if X > Y. */ #define nextafter(Val1, Val2) __TGMATH_BINARY_REAL_ONLY (Val1, Val2, nextafter) #define nexttoward(Val1, Val2) \ |