ref: 562f1b51ee293e7cef3a577b7409ea5b2caf0494
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"); }