diff options
Diffstat (limited to 'sysdeps/ieee754/ldbl-128ibm/s_copysignl.c')
| -rw-r--r-- | sysdeps/ieee754/ldbl-128ibm/s_copysignl.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/sysdeps/ieee754/ldbl-128ibm/s_copysignl.c b/sysdeps/ieee754/ldbl-128ibm/s_copysignl.c new file mode 100644 index 0000000..7e7b441 --- /dev/null +++ b/sysdeps/ieee754/ldbl-128ibm/s_copysignl.c @@ -0,0 +1,45 @@ +/* s_copysignl.c -- long double version of s_copysign.c. + * Conversion to long double by Jakub Jelinek, jj@ultra.linux.cz. + */ + +/* + * ==================================================== + * 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. + * ==================================================== + */ + +#if defined(LIBM_SCCS) && !defined(lint) +static char rcsid[] = "$NetBSD: $"; +#endif + +/* + * copysignl(long double x, long double y) + * copysignl(x,y) returns a value with the magnitude of x and + * with the sign bit of y. + */ + +#include "math.h" +#include "math_private.h" + +#ifdef __STDC__ + long double __copysignl(long double x, long double y) +#else + long double __copysignl(x,y) + long double x,y; +#endif +{ + if (y < 0.0) + { + if (x >= 0.0) + x = -x; + } + else if (x < 0.0) + x = -x; + return x; +} +weak_alias (__copysignl, copysignl) |