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Sprite 1984 - 1993
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Sprite 1984 - 1993.iso
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machserver
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1.098
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libc
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Quad_AddUnsLong.c
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C/C++ Source or Header
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1991-03-18
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1KB
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54 lines
/*
* Quad_AddUnsLong.c --
*
* Quad_AddUnsLong libc routine.
*
* Copyright 1991 Regents of the University of California
* Permission to use, copy, modify, and distribute this
* software and its documentation for any purpose and without
* fee is hereby granted, provided that this copyright
* notice appears in all copies. The University of California
* makes no representations about the suitability of this
* software for any purpose. It is provided "as is" without
* express or implied warranty.
*/
#ifndef lint
static char rcsid[] = "$Header: /sprite/src/lib/c/quad/RCS/Quad_AddUnsLong.c,v 1.1 91/03/18 12:19:06 kupfer Exp $ SPRITE (Berkeley)";
#endif /* not lint */
#include <quad.h>
/*
*----------------------------------------------------------------------
*
* Quad_AddUnsLong --
*
* Add an unsigned long to an unsigned quad.
*
* Results:
* The sum of the two values.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
void
Quad_AddUnsLong(uQuad, uLong, resultPtr)
u_quad uQuad; /* in */
u_long uLong; /* in */
u_quad *resultPtr; /* out */
{
unsigned long newLeastSig;
newLeastSig = uQuad.val[QUAD_LEAST_SIG] + uLong;
resultPtr->val[QUAD_MOST_SIG] = uQuad.val[QUAD_MOST_SIG];
if (newLeastSig < uQuad.val[QUAD_LEAST_SIG] && newLeastSig < uLong) {
resultPtr->val[QUAD_MOST_SIG]++;
}
resultPtr->val[QUAD_LEAST_SIG] = newLeastSig;
}