plotutils-graph-patches-lloda/include/libcommon.h

/* This file is part of the GNU plotutils package.  Copyright (C) 1995,
   1996, 1997, 1998, 1999, 2000, 2005, 2008, Free Software Foundation, Inc.

   The GNU plotutils package is free software.  You may redistribute it
   and/or modify it under the terms of the GNU General Public License as
   published by the Free Software foundation; either version 2, or (at your
   option) any later version.

   The GNU plotutils package is distributed in the hope that it will be
   useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   General Public License for more details.

   You should have received a copy of the GNU General Public License along
   with the GNU plotutils package; see the file COPYING.  If not, write to
   the Free Software Foundation, Inc., 51 Franklin St., Fifth Floor,
   Boston, MA 02110-1301, USA. */

/* libcommon.h: header file for libcommon, a library of miscellaneous
   support functions which is statically linked with several of the package
   executables.  It is built in ../lib. */

#include "sys-defines.h"	/* for bool, size_t, HAVE_STRERROR */

/*------------prototypes for libcommon functions----------------------------*/

/* Support C++.  This file could be #included by a C++ compiler rather than
   a C compiler, in which case it needs to know that libcommon functions
   have C linkage, not C++ linkage.  This is accomplished by wrapping all
   function declarations in __BEGIN_DECLS ... __END_DECLS. */
#ifdef ___BEGIN_DECLS
#undef ___BEGIN_DECLS
#endif
#ifdef ___END_DECLS
#undef ___END_DECLS
#endif
#ifdef __cplusplus
# define ___BEGIN_DECLS extern "C" {
# define ___END_DECLS }
#else
# define ___BEGIN_DECLS		/* empty */
# define ___END_DECLS		/* empty */
#endif
     
___BEGIN_DECLS

extern char * xstrdup (const char *s);
extern int display_fonts (const char *output_format, const char *progname);
extern int list_fonts (const char *output_format, const char *progname);
extern void display_usage (const char *progname, const int *omit_vals, const char *appendage, int info);
extern void display_version (const char *progname, const char *written, const char *copyright);
extern void * xmalloc (size_t length);
extern void * xrealloc (void *p, size_t length);

#ifndef HAVE_STRERROR
extern char *strerror (int errnum);
#endif

___END_DECLS