ref: 8bf1e5b77521d94876a58989a434ef1a08d6d509
dir: /sys/src/libString/s_tolower.c/
#include <u.h> #include <libc.h> #include "String.h" /* convert String to lower case */ void s_tolower(String *sp) { char *cp; for(cp=sp->ptr; *cp; cp++) *cp = tolower(*cp); }