ref: 31913a8524edf97ad79f9f895d6ac5761b9b2fd7
dir: /sys/src/ape/lib/ap/gen/strchr.c/
#include <string.h>
char*
strchr(const char *s, int c)
{
char c1;
if(c == 0) {
while(*s++)
;
return s-1;
}
while(c1 = *s++)
if(c1 == c)
return s-1;
return 0;
}