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| author | Gabriel F. T. Gomes <gabriel@inconstante.eti.br> | 2018-06-05 16:54:40 -0300 |
|---|---|---|
| committer | Paul E. Murphy <murphyp@linux.vnet.ibm.com> | 2020-02-28 08:20:02 -0600 |
| commit | d96723744332c22a4202a0505a3814cd950bc05d (patch) | |
| tree | 528042fe6d9e2dbf7a280b201cb051dad8c2f855 /sysdeps/ieee754/ldbl-128 | |
| parent | f1a166b0d7af9aa0f4021f67ed8ed496ee2c8b84 (diff) | |
| download | glibc-d96723744332c22a4202a0505a3814cd950bc05d.zip glibc-d96723744332c22a4202a0505a3814cd950bc05d.tar.gz glibc-d96723744332c22a4202a0505a3814cd950bc05d.tar.bz2 | |
ldbl-128ibm-compat: Provide nexttoward functions
The functions in the nexttoward family are special, in the sense that
they always have a long double argument, regardless of their suffix
(i.e.: nexttowardf and nexttoward have a long double argument, besides
the float and double arguments).
On top of that, they are also special because nexttoward functions are
not part of the _FloatN API, hence __nexttowardf128 do not exist.
This patch adds 4 new function implementations for the new long double
format:
__nexttoward_to_ieee128
__nexttowardf_to_ieee128
__nexttowardieee128 (as an alias to __nextafterieee128)
Likewise, rename "long double" "_Float128" in shared ldbl-128
files to ensure correct type is used irrespective of ABI
switches.
Thank you to those who helped out with this patch:
Co-Authored-By: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>
Diffstat (limited to 'sysdeps/ieee754/ldbl-128')
| -rw-r--r-- | sysdeps/ieee754/ldbl-128/s_nexttoward.c | 4 | ||||
| -rw-r--r-- | sysdeps/ieee754/ldbl-128/s_nexttowardf.c | 4 |
2 files changed, 4 insertions, 4 deletions
diff --git a/sysdeps/ieee754/ldbl-128/s_nexttoward.c b/sysdeps/ieee754/ldbl-128/s_nexttoward.c index 6db8b7f..e8c25f5 100644 --- a/sysdeps/ieee754/ldbl-128/s_nexttoward.c +++ b/sysdeps/ieee754/ldbl-128/s_nexttoward.c @@ -31,7 +31,7 @@ static char rcsid[] = "$NetBSD: $"; #include <math_private.h> #include <float.h> -double __nexttoward(double x, long double y) +double __nexttoward(double x, _Float128 y) { int32_t hx,ix; int64_t hy,iy; @@ -47,7 +47,7 @@ double __nexttoward(double x, long double y) ((iy>=0x7fff000000000000LL)&&((iy-0x7fff000000000000LL)|ly)!=0)) /* y is nan */ return x+y; - if((long double) x==y) return y; /* x=y, return y */ + if((_Float128) x==y) return y; /* x=y, return y */ if((ix|lx)==0) { /* x == 0 */ double u; INSERT_WORDS(x,(uint32_t)((hy>>32)&0x80000000),1);/* return +-minsub */ diff --git a/sysdeps/ieee754/ldbl-128/s_nexttowardf.c b/sysdeps/ieee754/ldbl-128/s_nexttowardf.c index 7840cb3..7770c42 100644 --- a/sysdeps/ieee754/ldbl-128/s_nexttowardf.c +++ b/sysdeps/ieee754/ldbl-128/s_nexttowardf.c @@ -23,7 +23,7 @@ static char rcsid[] = "$NetBSD: $"; #include <math-barriers.h> #include <math_private.h> -float __nexttowardf(float x, long double y) +float __nexttowardf(float x, _Float128 y) { int32_t hx,ix; int64_t hy,iy; @@ -38,7 +38,7 @@ float __nexttowardf(float x, long double y) ((iy>=0x7fff000000000000LL)&&((iy-0x7fff000000000000LL)|ly)!=0)) /* y is nan */ return x+y; - if((long double) x==y) return y; /* x=y, return y */ + if((_Float128) x==y) return y; /* x=y, return y */ if(ix==0) { /* x == 0 */ float u; SET_FLOAT_WORD(x,(uint32_t)((hy>>32)&0x80000000)|1);/* return +-minsub*/ |