/////////////////////////////////////////////////////////////////////////////
// Name: ffile.cpp
-// Purpose: wxFFile - encapsulates "FILE *" IO stream
+// Purpose: wxFFile encapsulates "FILE *" IO stream
// Author: Vadim Zeitlin
// Modified by:
// Created: 14.07.99
// RCS-ID: $Id$
// Copyright: (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
-// Licence: wxWindows license
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// ============================================================================
// headers
// ----------------------------------------------------------------------------
-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
#pragma implementation "ffile.h"
#endif
#pragma hdrstop
#endif
-#if wxUSE_FILE
+#if wxUSE_FFILE
#ifndef WX_PRECOMP
#include "wx/intl.h"
// opening the file
// ----------------------------------------------------------------------------
-wxFFile::wxFFile(const wxChar *filename, const char *mode)
+wxFFile::wxFFile(const wxChar *filename, const wxChar *mode)
{
Detach();
(void)Open(filename, mode);
}
-bool wxFFile::Open(const wxChar *filename, const char *mode)
+bool wxFFile::Open(const wxChar *filename, const wxChar *mode)
{
- wxASSERT_MSG( !m_fp, _T("should close or detach the old file first") );
+ wxASSERT_MSG( !m_fp, wxT("should close or detach the old file first") );
- m_fp = fopen(filename, mode);
+ m_fp = wxFopen(filename, mode);
if ( !m_fp )
{
wxLogSysError(_("can't open file '%s'"), filename);
- return FALSE;
+ return false;
}
m_name = filename;
- return TRUE;
+ return true;
}
bool wxFFile::Close()
{
if ( IsOpened() )
{
- if ( !fclose(m_fp) )
+ if ( fclose(m_fp) != 0 )
{
wxLogSysError(_("can't close file '%s'"), m_name.c_str());
- return FALSE;
+ return false;
}
Detach();
}
- return TRUE;
+ return true;
}
// ----------------------------------------------------------------------------
bool wxFFile::ReadAll(wxString *str)
{
- wxCHECK_MSG( str, FALSE, _T("invalid parameter") );
- wxCHECK_MSG( IsOpened(), FALSE, _T("can't read from closed file") );
+ wxCHECK_MSG( str, false, wxT("invalid parameter") );
+ wxCHECK_MSG( IsOpened(), false, wxT("can't read from closed file") );
clearerr(m_fp);
{
wxLogSysError(_("Read error on file '%s'"), m_name.c_str());
- return FALSE;
+ return false;
}
//else: just EOF
*str += buf;
}
- return TRUE;
+ return true;
}
size_t wxFFile::Read(void *pBuf, size_t nCount)
{
- wxCHECK_MSG( pBuf, FALSE, _T("invalid parameter") );
- wxCHECK_MSG( IsOpened(), FALSE, _T("can't read from closed file") );
+ wxCHECK_MSG( pBuf, FALSE, wxT("invalid parameter") );
+ wxCHECK_MSG( IsOpened(), FALSE, wxT("can't read from closed file") );
size_t nRead = fread(pBuf, 1, nCount, m_fp);
if ( (nRead < nCount) && Error() )
size_t wxFFile::Write(const void *pBuf, size_t nCount)
{
- wxCHECK_MSG( pBuf, FALSE, _T("invalid parameter") );
- wxCHECK_MSG( IsOpened(), FALSE, _T("can't write to closed file") );
+ wxCHECK_MSG( pBuf, FALSE, wxT("invalid parameter") );
+ wxCHECK_MSG( IsOpened(), FALSE, wxT("can't write to closed file") );
size_t nWritten = fwrite(pBuf, 1, nCount, m_fp);
if ( nWritten < nCount )
{
if ( IsOpened() )
{
- if ( !fflush(m_fp) )
+ // fflush returns non-zero on error
+ //
+ if ( fflush(m_fp) )
{
wxLogSysError(_("failed to flush the file '%s'"), m_name.c_str());
- return FALSE;
+ return false;
}
}
- return TRUE;
+ return true;
}
// ----------------------------------------------------------------------------
bool wxFFile::Seek(long ofs, wxSeekMode mode)
{
- wxCHECK_MSG( IsOpened(), FALSE, _T("can't seek on closed file") );
+ wxCHECK_MSG( IsOpened(), false, wxT("can't seek on closed file") );
int origin;
switch ( mode )
{
default:
- wxFAIL_MSG(_T("unknown seek mode"));
+ wxFAIL_MSG(wxT("unknown seek mode"));
// still fall through
case wxFromStart:
{
wxLogSysError(_("Seek error on file '%s'"), m_name.c_str());
- return FALSE;
+ return false;
}
- return TRUE;
+ return true;
}
size_t wxFFile::Tell() const
{
+ wxCHECK_MSG( IsOpened(), (size_t)-1,
+ _T("wxFFile::Tell(): file is closed!") );
+
long rc = ftell(m_fp);
if ( rc == -1 )
{
size_t wxFFile::Length() const
{
+ wxCHECK_MSG( IsOpened(), (size_t)-1,
+ _T("wxFFile::Length(): file is closed!") );
+
wxFFile& self = *(wxFFile *)this; // const_cast
size_t posOld = Tell();
return (size_t)-1;
}
-#endif // wxUSE_FILE
+#endif // wxUSE_FFILE