kaguya
66 lines
1.3 KiB
C++
66 lines
1.3 KiB
C++
#include <stdio.h>
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#include <stdarg.h>
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#include <errno.h>
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#include <string.h>
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#include <stdlib.h>
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#include <error.h>
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unsigned int error_message_count = 0;
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int error_one_per_line = 0;
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void (*error_print_progname)(void) = nullptr;
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void error(int status, int errnum, const char *format, ...) {
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va_list args;
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va_start(args, format);
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error_message_count++;
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fflush(stdout);
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if(error_print_progname) {
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error_print_progname();
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} else {
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fprintf(stderr, "%s: ", program_invocation_name);
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}
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vfprintf(stderr, format, args);
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va_end(args);
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if(errnum) {
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fprintf(stderr, ": %s\n", strerror(errnum));
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}
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if(status) {
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exit(status);
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}
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}
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void error_at_line(int status, int errnum, const char *filename, unsigned int linenum, const char *format, ...) {
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va_list args;
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va_start(args, format);
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static bool first_call = true;
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static unsigned int last_line = 0;
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if(!(last_line == linenum && error_one_per_line && !first_call)) {
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first_call = false;
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last_line = linenum;
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error_message_count++;
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fflush(stdout);
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if(error_print_progname) {
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error_print_progname();
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} else {
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fprintf(stderr, "%s:", program_invocation_name);
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}
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fprintf(stderr, "%s:%u: ", filename, linenum);
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vfprintf(stderr, format, args);
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if(errnum) {
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fprintf(stderr, ": %s\n", strerror(errnum));
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}
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}
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va_end(args);
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if(status) {
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exit(status);
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}
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}
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