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Sprite 1984 - 1993
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Sprite 1984 - 1993.iso
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strcpy.c
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C/C++ Source or Header
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1992-03-27
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2KB
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68 lines
/*
* strcpy.c --
*
* Source code for the "strcpy" library routine.
*
* Copyright 1988 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 the above copyright
* notice appear 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/string/RCS/strcpy.c,v 1.4 92/03/27 13:30:02 rab Exp $ SPRITE (Berkeley)";
#endif /* not lint */
#include <string.h>
/*
*----------------------------------------------------------------------
*
* strcpy --
*
* Copy a string from one location to another.
*
* Results:
* The return value is a pointer to the destination string, dst.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
char *
strcpy(dst, src)
register char *src; /* Place from which to copy. */
char *dst; /* Place to store copy. */
{
register char *copy = dst;
register char c;
do {
c = copy[0] = src[0];
if (c == '\0') {
break;
}
c = copy[1] = src[1];
if (c == '\0') {
break;
}
c = copy[2] = src[2];
if (c == '\0') {
break;
}
c = copy[3] = src[3];
if (c == '\0') {
break;
}
copy += 4;
src += 4;
} while (1);
return dst;
}