Reimplement isinf/isnan/fpclassify.
Also move isinf and isnan into libc like everyone else.
Also move fpclassify to libc like the BSDs (but unlike glibc). We need
this to be able to upgrade our float/double/long double parsing to gdtoa.
Also add some missing aliases. We now have all of:
isnan, __isnan, isnanf, __isnanf, isnanl, __isnanl,
isinf, __isinf, isinff, __isinff, isinfl, __isinfl,
__fpclassify, __fpclassifyd, __fpclassifyf, __fpclassifyl.
Bug: 13469877
Change-Id: I407ffbac06c765a6c5fffda8106c37d7db04f27d
diff --git a/libc/stdio/vfprintf.c b/libc/stdio/vfprintf.c
index d2c315d..e33c105 100644
--- a/libc/stdio/vfprintf.c
+++ b/libc/stdio/vfprintf.c
@@ -154,12 +154,6 @@
#define STATIC_ARG_TBL_SIZE 8 /* Size of static argument table. */
-/* BIONIC: do not link libm for only two rather simple functions */
-#ifdef FLOATING_POINT
-static int _my_isinf(double);
-static int _my_isnan(double);
-#endif
-
/*
* Macros for converting digits to letters and vice versa
*/
@@ -543,14 +537,14 @@
}
/* do this before tricky precision changes */
- if (_my_isinf(_double)) {
+ if (isinf(_double)) {
if (_double < 0)
sign = '-';
cp = "Inf";
size = 3;
break;
}
- if (_my_isnan(_double)) {
+ if (isnan(_double)) {
cp = "NaN";
size = 3;
break;
@@ -1331,29 +1325,4 @@
return (p - p0);
}
-
-/* BIONIC */
-#include <machine/ieee.h>
-typedef union {
- double d;
- struct ieee_double i;
-} ieee_u;
-
-static int
-_my_isinf (double value)
-{
- ieee_u u;
-
- u.d = value;
- return (u.i.dbl_exp == 2047 && u.i.dbl_frach == 0 && u.i.dbl_fracl == 0);
-}
-
-static int
-_my_isnan (double value)
-{
- ieee_u u;
-
- u.d = value;
- return (u.i.dbl_exp == 2047 && (u.i.dbl_frach != 0 || u.i.dbl_fracl != 0));
-}
#endif /* FLOATING_POINT */