ref: bc1ff6985c03402497a052d2b4e2a299b3cdf218
dir: /sys/src/libregexp/regerror.c/
#include <u.h> #include <libc.h> #include "regexp.h" void regerror(char *s) { char buf[132]; strcpy(buf, "regerror: "); strcat(buf, s); strcat(buf, "\n"); write(2, buf, strlen(buf)); exits("regerr"); }