Mercurial > sdl-ios-xcode
view src/libm/s_copysign.c @ 4495:dbbfdb9ea716
Simplified clipboard API for sanity's sake.
A complete clipboard implementation would support multiple formats that could be queried at runtime, events for when the clipboard contents changed, support for HTML, images, etc. We're not going that crazy, at least for now. :)
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Wed, 07 Jul 2010 23:54:03 -0700 |
| parents | dc1eb82ffdaa |
| children |
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/* @(#)s_copysign.c 5.1 93/09/24 */ /* * ==================================================== * 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 const char rcsid[] = "$NetBSD: s_copysign.c,v 1.8 1995/05/10 20:46:57 jtc Exp $"; #endif /* * copysign(double x, double y) * copysign(x,y) returns a value with the magnitude of x and * with the sign bit of y. */ #include "math.h" #include "math_private.h" libm_hidden_proto(copysign) #ifdef __STDC__ double copysign(double x, double y) #else double copysign(x, y) double x, y; #endif { u_int32_t hx, hy; GET_HIGH_WORD(hx, x); GET_HIGH_WORD(hy, y); SET_HIGH_WORD(x, (hx & 0x7fffffff) | (hy & 0x80000000)); return x; } libm_hidden_def(copysign)