/* error.h — GNU-style error reporting.
 *
 * Red Bear OS / relibc. Mirrors glibc <error.h>: error() and error_at_line()
 * print the program name (best effort), a formatted message, and optionally a
 * strerror() of errnum to stderr, then exit() when status is non-zero.
 *
 * These are DECLARED here and IMPLEMENTED as real exported symbols in relibc
 * (src/header/error). They must NOT be static-inline: autotools/gnulib link-test
 * for a system error() and, finding one, skip compiling their own lib/error.c —
 * a header-only inline collides with that replacement ("redefinition of
 * 'error'", seen building m4/gnulib).
 */
#ifndef _ERROR_H
#define _ERROR_H 1

#ifdef __cplusplus
extern "C" {
#endif

/* Count of messages printed by error()/error_at_line(). */
extern unsigned int error_message_count;

/* When non-zero, error_at_line() prints each distinct file:line only once. */
extern int error_one_per_line;

/* Optional hook to print the program name instead of the default. */
extern void (*error_print_progname)(void);

extern void error(int __status, int __errnum, const char *__format, ...)
    __attribute__((__format__(__printf__, 3, 4)));

extern void error_at_line(int __status, int __errnum, const char *__fname,
                          unsigned int __lineno, const char *__format, ...)
    __attribute__((__format__(__printf__, 5, 6)));

#ifdef __cplusplus
}
#endif

#endif /* error.h */