ref: 603c00cd96823aedea6d257701d38ed060cfc127
dir: /cc1/error.c/
/* See LICENSE file for copyright and license details. */ static char sccsid[] = "@(#) ./cc1/error.c"; #include <stdarg.h> #include <stdio.h> #include <stdlib.h> #include "../inc/cc.h" #include "cc1.h" #define MAXERRNUM 10 extern int failure; static unsigned nerrors; static void warn_error(int flag, char *fmt, va_list va) { if (flag == 0) return; fprintf(stderr, "%s:%u: %s: ", filenam, lineno, (flag < 0) ? "error" : "warning"); vfprintf(stderr, fmt, va); putc('\n', stderr); if (flag < 0) { if (!failure) fclose(stdout); failure = 1; if (++nerrors == MAXERRNUM) { fputs("too many errors\n", stderr); exit(1); } } } void warn(char *fmt, ...) { extern int warnings; va_list va; va_start(va, fmt); warn_error(warnings, fmt, va); va_end(va); } void error(char *fmt, ...) { va_list va; va_start(va, fmt); warn_error(-1, fmt, va); va_end(va); exit(1); discard(); } void errorp(char *fmt, ...) { va_list va; va_start(va, fmt); warn_error(-1, fmt, va); va_end(va); } void cpperror(char *fmt, ...) { va_list va; va_start(va, fmt); warn_error(-1, fmt, va); va_end(va); /* discard input until the end of the line */ *input->p = '\0'; next(); } void unexpected(void) { error("unexpected '%s'", yytext); }