windows-nt/Source/XPSP1/NT/base/crts/crtw32/misc/abs.c

62 lines
1.9 KiB
C
Raw Permalink Normal View History

2020-09-26 03:20:57 -05:00
/***
*abs.c - find absolute value
*
* Copyright (c) 1985-2001, Microsoft Corporation. All rights reserved.
*
*Purpose:
* defines abs() - find the absolute value of an int.
*
*Revision History:
* 04-22-87 JMB added function pragma for conversion to C 5.0 compiler
* 12-11-87 JCR Added "_LOAD_DS" to declaration
* 03-14-90 GJF Replaced _LOAD_DS with _CALLTYPE1, added #include
* <cruntime.h> and fixed the copyright. Also, cleaned
* up the formatting a bit.
* 10-04-90 GJF New-style function declarator.
* 12-28-90 SRW Added _CRUISER_ conditional around function pragma
* 04-01-91 SRW Enable #pragma function for i386 _WIN32_ builds too.
* 04-06-93 SKS Replace _CRTAPI* with __cdecl
* No _CRTIMP for CRT DLL model due to intrinsic
* 12-03-93 GJF Turn on #pragma function for all MS front-ends (esp.,
* Alpha compiler).
* 12-30-94 JCF Turn off #pragma function for MAC.
* 05-17-99 PML Remove all Macintosh support.
* 01-04-01 GB Added __int64 version of abs
*
*******************************************************************************/
#include <cruntime.h>
#include <stdlib.h>
#pragma function(abs, _abs64)
/***
*int abs(number) - find absolute value of number
*
*Purpose:
* Returns the absolute value of number (if number >= 0, returns number,
* else returns -number).
*
*Entry:
* int number - number to find absolute value of
*
*Exit:
* returns the aboslute value of number
*
*Exceptions:
*
*******************************************************************************/
int __cdecl abs (
int number
)
{
return( number>=0 ? number : -number );
}
__int64 __cdecl _abs64(
__int64 num
)
{
return (num >=0 ? num : -num);
}