main/glib/strlen.c


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#include "config.h"
#include <ctype.h>
#include "genlib.h"
#include "stddefs.h"

/* strlen():
 * Returns the number of
 * non-NULL bytes in string argument.
 */
int
strlen(register char *s)
{
    register char *s0 = s + 1;

    while(*s++ != '\0')
        ;
    return (s - s0);
}