diff options
| author | das <das@FreeBSD.org> | 2010-06-12 17:32:05 +0000 |
|---|---|---|
| committer | das <das@FreeBSD.org> | 2010-06-12 17:32:05 +0000 |
| commit | cffc98917516f0cc67b1aaada5f93647efe93772 (patch) | |
| tree | 10a5155b3f734a7fe6d9186f40e77235194e5a35 /lib | |
| parent | 5deeb3cf12edde9c9f52e91e6e217c1c3bac2694 (diff) | |
| download | FreeBSD-src-cffc98917516f0cc67b1aaada5f93647efe93772.zip FreeBSD-src-cffc98917516f0cc67b1aaada5f93647efe93772.tar.gz | |
Introduce __isnanf() as an alias for isnanf(), and make the isnan()
macro expand to __isnanf() instead of isnanf() for float arguments.
This change is needed because isnanf() isn't declared in strict POSIX
or C99 mode.
Compatibility note: Apps using isnan(float) that are compiled after
this change won't link against an older libm.
Reported by: Florian Forster <octo@verplant.org>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/msun/Symbol.map | 5 | ||||
| -rw-r--r-- | lib/msun/src/math.h | 3 | ||||
| -rw-r--r-- | lib/msun/src/s_isnan.c | 4 |
3 files changed, 10 insertions, 2 deletions
diff --git a/lib/msun/Symbol.map b/lib/msun/Symbol.map index 39196bd..429a76f 100644 --- a/lib/msun/Symbol.map +++ b/lib/msun/Symbol.map @@ -218,3 +218,8 @@ FBSD_1.1 { cprojf; cprojl; }; + +/* First added in 9.0-CURRENT */ +FBSD_1.2 { + __isnanf; +}; diff --git a/lib/msun/src/math.h b/lib/msun/src/math.h index 601d0ce..9109727 100644 --- a/lib/msun/src/math.h +++ b/lib/msun/src/math.h @@ -97,7 +97,7 @@ extern const union __nan_un { : (sizeof (x) == sizeof (double)) ? isinf(x) \ : __isinfl(x)) #define isnan(x) \ - ((sizeof (x) == sizeof (float)) ? isnanf(x) \ + ((sizeof (x) == sizeof (float)) ? __isnanf(x) \ : (sizeof (x) == sizeof (double)) ? isnan(x) \ : __isnanl(x)) #define isnormal(x) \ @@ -179,6 +179,7 @@ int __isfinite(double) __pure2; int __isfinitel(long double) __pure2; int __isinff(float) __pure2; int __isinfl(long double) __pure2; +int __isnanf(float) __pure2; int __isnanl(long double) __pure2; int __isnormalf(float) __pure2; int __isnormal(double) __pure2; diff --git a/lib/msun/src/s_isnan.c b/lib/msun/src/s_isnan.c index 5de99ad..0f544db 100644 --- a/lib/msun/src/s_isnan.c +++ b/lib/msun/src/s_isnan.c @@ -43,7 +43,7 @@ isnan(double d) #endif int -isnanf(float f) +__isnanf(float f) { union IEEEf2bits u; @@ -60,3 +60,5 @@ __isnanl(long double e) mask_nbit_l(u); return (u.bits.exp == 32767 && (u.bits.manl != 0 || u.bits.manh != 0)); } + +__weak_reference(__isnanf, isnanf); |
