diff options
Diffstat (limited to 'nx-X11/programs/Xserver/hw/xfree86/os-support/misc/xf86_Util.c')
-rw-r--r-- | nx-X11/programs/Xserver/hw/xfree86/os-support/misc/xf86_Util.c | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/nx-X11/programs/Xserver/hw/xfree86/os-support/misc/xf86_Util.c b/nx-X11/programs/Xserver/hw/xfree86/os-support/misc/xf86_Util.c new file mode 100644 index 000000000..afcdd5b69 --- /dev/null +++ b/nx-X11/programs/Xserver/hw/xfree86/os-support/misc/xf86_Util.c @@ -0,0 +1,96 @@ +/* $XFree86: xc/programs/Xserver/hw/xfree86/os-support/misc/xf86_Util.c,v 3.7 1999/01/14 13:05:05 dawes Exp $ */ +/* + * Copyright 1993 by David Wexelblat <dwex@goblin.org> + * + * Permission to use, copy, modify, distribute, and sell this software and its + * documentation for any purpose is hereby granted without fee, provided that + * the above copyright notice appear in all copies and that both that + * copyright notice and this permission notice appear in supporting + * documentation, and that the name of David Wexelblat not be used in + * advertising or publicity pertaining to distribution of the software without + * specific, written prior permission. David Wexelblat makes no representations + * about the suitability of this software for any purpose. It is provided + * "as is" without express or implied warranty. + * + * DAVID WEXELBLAT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO + * EVENT SHALL DAVID WEXELBLAT BE LIABLE FOR ANY SPECIAL, INDIRECT OR + * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, + * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER + * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR + * PERFORMANCE OF THIS SOFTWARE. + * + */ +/* $XConsortium: xf86_Util.c /main/5 1996/10/23 13:13:10 kaleb $ */ + +/* + * This file is for utility functions that will be shared by other pieces + * of the system. Putting things here ensure that all the linking order + * dependencies are dealt with, as this library will be linked in last. + */ + +#ifdef HAVE_XORG_CONFIG_H +#include <xorg-config.h> +#endif + +#include <ctype.h> + +/* To prevent empty source file warnings */ +int _xf86misc; + +#if 0 +/* For use only with gcc */ +#ifdef __GNUC__ + +#include "os.h" + +char * +debug_alloca(char *file, int line, int size) +{ + char *ptr; + + ptr = Xalloc(size); + ErrorF("Alloc: %s line %d; ptr = 0x%x, length = %d\n", file, line, + ptr, size); + return ptr; +} + +void +debug_dealloca(char *file, int line, char *ptr) +{ + ErrorF("Dealloc: %s line %d; ptr = 0x%x\n", file, line, ptr); + Xfree(ptr); +} +#endif +#endif + +#if defined(ISC) || defined(Lynx) + +#include <math.h> + +/* Needed for apm_driver.c */ +/* These functions are modeled after the functions inside gnu's libc */ + +static double +copysign(double x, double y) +{ + x = fabs(x); + return y < 0 ? - x : x; +} + +double +RInt(double x) +{ + double s,t; + const double one = 1.0; + const static double L = 4503599627370496.0E0; + + if (x!=x) + return(x); + if (copysign(x,one) >= L) + return(x); + s = copysign(L,x); + t = x + s; + return (t - s); +} +#endif |