error.h

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/*************************************************************************
 * Copyright (c) 2011 AT&T Intellectual Property
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/org/documents/epl-2.0/EPL-2.0.html
 *
 * Contributors: Details at https://graphviz.org
 *************************************************************************/
 
#pragma once
 
#ifdef __cplusplus
extern "C" {
#endif
 
/*
 * standalone mini error interface
 */
 
#include <errno.h>
#include <stdarg.h>
 
typedef struct Error_info_s {
  int errors;
  int indent;
  int line;
  int warnings;
  int trace;
  char *file;
  char *id;
} Error_info_t;
 
#define ERROR_INFO 0            /* info message -- no err_id    */
#define ERROR_WARNING 1         /* warning message              */
#define ERROR_ERROR 2           /* error message -- no err_exit */
#define ERROR_FATAL 3           /* error message with err_exit  */
#define ERROR_PANIC ERROR_LEVEL /* panic message with err_exit  */
 
#define ERROR_LEVEL 0x00ff /* level portion of status      */
#define ERROR_USAGE 0x0800 /* usage message                */
 
/* support for extra API misuse warnings if available */
#ifdef __GNUC__
#define PRINTF_LIKE(index, first) __attribute__((format(printf, index, first)))
#else
#define PRINTF_LIKE(index, first) /* nothing */
#endif
 
extern Error_info_t error_info;
 
void setTraceLevel(int);
void setErrorLine(int);
void setErrorFileLine(char *, int);
void setErrorId(char *);
void setErrorErrors(int);
int getErrorErrors(void);
 
void error(int, const char *, ...) PRINTF_LIKE(2, 3);
void errorf(const char *, void *, int, const char *, ...) PRINTF_LIKE(4, 5);
void errorv(const char *, int, const char *, va_list);
 
#undef PRINTF_LIKE
 
#ifdef __cplusplus
}
#endif