Author: das
Date: Sat Jun 12 17:32:05 2010
New Revision: 209110
URL: http://svn.freebsd.org/changeset/base/209110
Log:
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 <o...@verplant.org>
Modified:
head/lib/msun/Symbol.map
head/lib/msun/src/math.h
head/lib/msun/src/s_isnan.c
Modified: head/lib/msun/Symbol.map
==============================================================================
--- head/lib/msun/Symbol.map Sat Jun 12 16:04:29 2010 (r209109)
+++ head/lib/msun/Symbol.map Sat Jun 12 17:32:05 2010 (r209110)
@@ -218,3 +218,8 @@ FBSD_1.1 {
cprojf;
cprojl;
};
+
+/* First added in 9.0-CURRENT */
+FBSD_1.2 {
+ __isnanf;
+};
Modified: head/lib/msun/src/math.h
==============================================================================
--- head/lib/msun/src/math.h Sat Jun 12 16:04:29 2010 (r209109)
+++ head/lib/msun/src/math.h Sat Jun 12 17:32:05 2010 (r209110)
@@ -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;
Modified: head/lib/msun/src/s_isnan.c
==============================================================================
--- head/lib/msun/src/s_isnan.c Sat Jun 12 16:04:29 2010 (r209109)
+++ head/lib/msun/src/s_isnan.c Sat Jun 12 17:32:05 2010 (r209110)
@@ -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);
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