mrw-cxx/src/errno.cxx

/** @file

    $Id$

    $Date$
    $Author$
    @copy © Marc Wäckerlin
    @license LGPL, see file <a href="license.html">COPYING</a>

    $Log$
    Revision 1.3  2005/02/28 07:29:18  marc
    added ifdef for non glibc (Solaris)

    Revision 1.2  2005/02/18 15:53:07  marc
    I'm so stupid, there's strerror for mapping errno to a string...

    Revision 1.1  2005/02/08 12:30:22  marc
    new in release 1.8.0


         1         2         3         4         5         6         7         8
    5678901234567890123456789012345678901234567890123456789012345678901234567890
*/

#include <mrw/errno.hxx>
#include <mrw/string.hxx>
#include <mrw/stdext.hxx>
#include <errno.h>
#include <string.h>

mrw::Errno::Errno() noexcept: _errnoxxx(errno) {}

mrw::Errno::operator std::string() const {
  return *this;
}
      
std::string mrw::Errno::string() const {
  char* pos(0);
  char error[1024];
#ifdef __GLIBC__
# if defined __USE_XOPEN2K && !defined __USE_GNU
  return strerror_r(errno=_errnoxxx, error, 1024)!=-1
    ? error+std::string(" errno=")+_errnoxxx
    : std::string("errno=")+_errnoxxx;
# else
  return (pos=strerror_r(errno=_errnoxxx, error, 1024))
    ? pos+std::string(" errno=")+_errnoxxx
    : std::string("errno=")+_errnoxxx;
# endif
#else
# if defined __USE_XOPEN2K && !defined __USE_GNU
  return strerror_r(errno=_errnoxxx, error, 1024)!=-1
    ? error+std::string(" errno=")+_errnoxxx
    : std::string("errno=")+_errnoxxx;
# else
  return (pos=strerror(errno=_errnoxxx))
    ? error+std::string(" errno=")+_errnoxxx
    : std::string("errno=")+_errnoxxx;
# endif
#endif
}