include/ansi/_cerrno.h

// -*- C++ -*-
/***************************************************************************
 *
 * _cerrno.h - C++ Standard library interface to the ANSI C header errno.h
 *
 * $Id: //stdlib/dev/include/ansi/_cerrno.h#10 $
 *
 ***************************************************************************
 *
 * Copyright (c) 1994-2005 Quovadx,  Inc., acting through its  Rogue Wave
 * Software division. Licensed under the Apache License, Version 2.0 (the
 * "License");  you may  not use this file except  in compliance with the
 * License.    You    may   obtain   a   copy   of    the   License    at
 * http://www.apache.org/licenses/LICENSE-2.0.    Unless   required    by
 * applicable law  or agreed to  in writing,  software  distributed under
 * the License is distributed on an "AS IS" BASIS,  WITHOUT WARRANTIES OR
 * CONDITIONS OF  ANY KIND, either  express or implied.  See  the License
 * for the specific language governing permissions  and limitations under
 * the License.
 * 
 **************************************************************************/

#ifndef _RWSTD_CERRNO_H_INCLUDED
#define _RWSTD_CERRNO_H_INCLUDED


#include <rw/_defs.h>


#ifdef __linux__

_RWSTD_NAMESPACE (std) { 

extern "C" {

extern int errno;

extern int* __errno_location ();


#ifdef _RWSTD_REENTRANT
   // 17.4.1.2, p5 - errno may be a macro
   // lwg issue 310 - errno must be a macro
#  define errno (*_STD::__errno_location ())
#else   // if !defined (_RWSTD_REENTRANT)
#  define errno _STD::errno
#endif   // _RWSTD_REENTRANT


#define EDOM     33
#define ERANGE   34

// lwg issue 288
#define EILSEQ   84

}   // extern "C"

}   // namespace std

#elif defined (__sun__) || defined (__sun)

_RWSTD_NAMESPACE (std) { 

extern "C" {

extern int errno;

extern int* ___errno ();

#ifdef _RWSTD_REENTRANT
   // 17.4.1.2, p5 - errno may be a macro
   // lwg issue 310 - errno must be a macro
#  define errno (*_STD::___errno ())
#else   // if !defined (_RWSTD_REENTRANT)
#  define errno _STD::errno
#endif   // _RWSTD_REENTRANT


#define EDOM     33
#define ERANGE   34

// lwg issue 288
#define EILSEQ   84

}   // extern "C"

}   // namespace std

#else   // if !__linux__ && !__sun__
#  include _RWSTD_ANSI_C_ERRNO_H
#endif   // __linux__


#endif   // _RWSTD_CERRNO_H_INCLUDED