diff options
| author | 3gg <3gg@shellblade.net> | 2025-12-27 12:03:39 -0800 |
|---|---|---|
| committer | 3gg <3gg@shellblade.net> | 2025-12-27 12:03:39 -0800 |
| commit | 5a079a2d114f96d4847d1ee305d5b7c16eeec50e (patch) | |
| tree | 8926ab44f168acf787d8e19608857b3af0f82758 /contrib/SDL-3.2.8/src/libm/s_copysign.c | |
Initial commit
Diffstat (limited to 'contrib/SDL-3.2.8/src/libm/s_copysign.c')
| -rw-r--r-- | contrib/SDL-3.2.8/src/libm/s_copysign.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/contrib/SDL-3.2.8/src/libm/s_copysign.c b/contrib/SDL-3.2.8/src/libm/s_copysign.c new file mode 100644 index 0000000..630f477 --- /dev/null +++ b/contrib/SDL-3.2.8/src/libm/s_copysign.c | |||
| @@ -0,0 +1,30 @@ | |||
| 1 | #include "SDL_internal.h" | ||
| 2 | /* | ||
| 3 | * ==================================================== | ||
| 4 | * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. | ||
| 5 | * | ||
| 6 | * Developed at SunPro, a Sun Microsystems, Inc. business. | ||
| 7 | * Permission to use, copy, modify, and distribute this | ||
| 8 | * software is freely granted, provided that this notice | ||
| 9 | * is preserved. | ||
| 10 | * ==================================================== | ||
| 11 | */ | ||
| 12 | |||
| 13 | /* | ||
| 14 | * copysign(double x, double y) | ||
| 15 | * copysign(x,y) returns a value with the magnitude of x and | ||
| 16 | * with the sign bit of y. | ||
| 17 | */ | ||
| 18 | |||
| 19 | #include "math_libm.h" | ||
| 20 | #include "math_private.h" | ||
| 21 | |||
| 22 | double copysign(double x, double y) | ||
| 23 | { | ||
| 24 | u_int32_t hx,hy; | ||
| 25 | GET_HIGH_WORD(hx,x); | ||
| 26 | GET_HIGH_WORD(hy,y); | ||
| 27 | SET_HIGH_WORD(x,(hx&0x7fffffff)|(hy&0x80000000)); | ||
| 28 | return x; | ||
| 29 | } | ||
| 30 | libm_hidden_def(copysign) | ||
