diff options
author | pommicket <pommicket@gmail.com> | 2022-02-20 13:18:21 -0800 |
---|---|---|
committer | pommicket <pommicket@gmail.com> | 2022-02-20 13:18:21 -0800 |
commit | 9bc8a11afeed3569736b89754012e3ca22ee10f6 (patch) | |
tree | 5f0ec0d5c05f879b1ee86adfa654ed3ef2178d5f /05/musl-0.6.0/src/math/s_copysignf.c | |
parent | 0f97a589b800bdb71dda05984192f0f66a52edaa (diff) |
conclusion
Diffstat (limited to '05/musl-0.6.0/src/math/s_copysignf.c')
-rw-r--r-- | 05/musl-0.6.0/src/math/s_copysignf.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/05/musl-0.6.0/src/math/s_copysignf.c b/05/musl-0.6.0/src/math/s_copysignf.c new file mode 100644 index 0000000..d650e8e --- /dev/null +++ b/05/musl-0.6.0/src/math/s_copysignf.c @@ -0,0 +1,33 @@ +/* s_copysignf.c -- float version of s_copysign.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. + * ==================================================== + */ + +/* + * copysignf(float x, float y) + * copysignf(x,y) returns a value with the magnitude of x and + * with the sign bit of y. + */ + +#include <math.h> +#include "math_private.h" + +float +copysignf(float x, float y) +{ + uint32_t ix,iy; + GET_FLOAT_WORD(ix,x); + GET_FLOAT_WORD(iy,y); + SET_FLOAT_WORD(x,(ix&0x7fffffff)|(iy&0x80000000)); + return x; +} |