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  1. /* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */
  2. /* cairo - a vector graphics library with display and print output
  3.  *
  4.  * Copyright © 2002 University of Southern California
  5.  * Copyright © 2005 Red Hat, Inc.
  6.  *
  7.  * This library is free software; you can redistribute it and/or
  8.  * modify it either under the terms of the GNU Lesser General Public
  9.  * License version 2.1 as published by the Free Software Foundation
  10.  * (the "LGPL") or, at your option, under the terms of the Mozilla
  11.  * Public License Version 1.1 (the "MPL"). If you do not alter this
  12.  * notice, a recipient may use your version of this file under either
  13.  * the MPL or the LGPL.
  14.  *
  15.  * You should have received a copy of the LGPL along with this library
  16.  * in the file COPYING-LGPL-2.1; if not, write to the Free Software
  17.  * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA
  18.  * You should have received a copy of the MPL along with this library
  19.  * in the file COPYING-MPL-1.1
  20.  *
  21.  * The contents of this file are subject to the Mozilla Public License
  22.  * Version 1.1 (the "License"); you may not use this file except in
  23.  * compliance with the License. You may obtain a copy of the License at
  24.  * http://www.mozilla.org/MPL/
  25.  *
  26.  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
  27.  * OF ANY KIND, either express or implied. See the LGPL or the MPL for
  28.  * the specific language governing rights and limitations.
  29.  *
  30.  * The Original Code is the cairo graphics library.
  31.  *
  32.  * The Initial Developer of the Original Code is University of Southern
  33.  * California.
  34.  *
  35.  * Contributor(s):
  36.  *      Carl D. Worth <cworth@cworth.org>
  37.  */
  38.  
  39. #include "cairoint.h"
  40. #include "cairo-private.h"
  41.  
  42. #include "cairo-compiler-private.h"
  43. #include "cairo-error-private.h"
  44.  
  45. #include <assert.h>
  46.  
  47. /**
  48.  * _cairo_error:
  49.  * @status: a status value indicating an error, (eg. not
  50.  * %CAIRO_STATUS_SUCCESS)
  51.  *
  52.  * Checks that status is an error status, but does nothing else.
  53.  *
  54.  * All assignments of an error status to any user-visible object
  55.  * within the cairo application should result in a call to
  56.  * _cairo_error().
  57.  *
  58.  * The purpose of this function is to allow the user to set a
  59.  * breakpoint in _cairo_error() to generate a stack trace for when the
  60.  * user causes cairo to detect an error.
  61.  *
  62.  * Return value: the error status.
  63.  **/
  64. cairo_status_t
  65. _cairo_error (cairo_status_t status)
  66. {
  67.     CAIRO_ENSURE_UNIQUE;
  68.     assert (_cairo_status_is_error (status));
  69.  
  70.     return status;
  71. }
  72.  
  73. COMPILE_TIME_ASSERT ((int)CAIRO_INT_STATUS_LAST_STATUS == (int)CAIRO_STATUS_LAST_STATUS);
  74.