diff options
Diffstat (limited to 'libm/s_finitef.c')
| -rw-r--r-- | libm/s_finitef.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/libm/s_finitef.c b/libm/s_finitef.c new file mode 100644 index 000000000..66eba8f98 --- /dev/null +++ b/libm/s_finitef.c @@ -0,0 +1,32 @@ +/* s_finitef.c -- float version of s_finite.c. + * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com. + */ + +/* + * ==================================================== + * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. + * + * Developed at SunPro, a Sun Microsystems, Inc. business. + * Permission to use, copy, modify, and distribute this + * software is freely granted, provided that this notice + * is preserved. + * ==================================================== + */ + +/* + * finitef(x) returns 1 is x is finite, else 0; + * no branching! + */ + +#include "math.h" +#include "math_private.h" + +libm_hidden_proto(__finitef) +int __finitef(float x) +{ + int32_t ix; + GET_FLOAT_WORD(ix,x); + return (int)((u_int32_t)((ix&0x7fffffff)-0x7f800000)>>31); +} +libm_hidden_def(__finitef) +strong_alias(__finitef,finitef) |