mkostemp: fix implementation

[uclinux-h8/uClibc.git] / libm / s_finite.c

diff --git a/libm/s_finite.c b/libm/s_finite.c
index 357c3d4..9bbc002 100644 (file)
--- a/libm/s_finite.c
+++ b/libm/s_finite.c
@@ -1,4 +1,3 @@
-/* @(#)s_finite.c 5.1 93/09/24 */
 /*
  * ====================================================
  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
@@ -23,8 +22,11 @@
 
 int __finite(double x)
 {
-       int32_t hx;
-       GET_HIGH_WORD(hx,x);
-       return (int)((u_int32_t)((hx&0x7fffffff)-0x7ff00000)>>31);
+       u_int32_t hx;
+
+       GET_HIGH_WORD(hx, x);
+       /* Finite numbers have at least one zero bit in exponent. */
+       /* All other numbers will result in 0xffffffff after OR: */
+       return (hx | 0x800fffff) != 0xffffffff;
 }
 libm_hidden_def(__finite)