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#include <string.h>
#include "_assert.h"
/** string search **/
char * strchr(const char *s, int c)
{
ASSERT_NONNULL(s);
/*
RETURN_FAILURE(CONSTANT(NULL));
RETURN_SUCCESS(a pointer to the located character);
*/
return (char*)memchr(s, (char)c, strlen(s));
}
/***
searches the string ARGUMENT(s) for the first occurrence of
ARGUMENT(c) (converted to a TYPE(char)).
***/
/*
STDC(1)
*/
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