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#include <string.h>
#include "_assert.h"
/** copy string **/
char * strcpy(char * restrict s1, const char * restrict s2)
{
char *p = s1;
ASSERT_NONNULL(s1);
ASSERT_NONNULL(s2);
ASSERT_NOOVERLAP(s1, s2, strlen(s2));
while ((*s1++ = *s2++) != '\0') {
continue;
}
/*
RETURN_ALWAYS(ARGUMENT(s1));
*/
return p;
}
/***
copies the string at ARGUMENT(s2) to ARGUMENT(s1), up to and
including the terminating CHAR(\0).
***/
/*
STDC(1)
*/
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