ref: c65b15611c17d3f264c71ee7f326c15d2e838431
dir: /cc1/error.c/
#include <setjmp.h> #include <stdarg.h> #include <stdio.h> #include <stdlib.h> #include <inttypes.h> #include "../inc/cc.h" #include "cc1.h" extern uint8_t failure; extern jmp_buf recover; static void warn_helper(int8_t flag, char *fmt, va_list va) { extern unsigned linenum; extern unsigned columnum; extern const char *filename; if (!flag) return; fprintf(stderr, "%s:%s:%u: ", (flag < 0) ? "error" : "warning", filename, linenum); vfprintf(stderr, fmt, va); putc('\n', stderr); } void warn(char *fmt, ...) { extern uint8_t warnings; va_list va; va_start(va, fmt); warn_helper(warnings, fmt, va); va_end(va); } void error(char *fmt, ...) { va_list va; va_start(va, fmt); warn_helper(-1, fmt, va); va_end(va); failure = 1; longjmp(recover, 1); } void softerror(char *fmt, ...) { va_list va; va_start(va, fmt); warn_helper(-1, fmt, va); va_end(va); failure = 1; } void unexpected(void) { error("unexpected '%s'", yytext); }