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/* -*- C++ -*- */
// $Id$
// Standard library includes for wide functions declared in ace_wchar.h
#ifndef OS_NS_STDLIB_BASE_INL
#define OS_NS_STDLIB_BASE_INL
#include "OS_NS_string_base.h"
namespace ACE_OS
{
template <typename DCHAR, typename SCHAR> inline
size_t string_copy (DCHAR* dest, const SCHAR* src, size_t len)
{
// We must have a source and a valid length with a dest
if ( src == 0 || ( dest != 0 && static_cast<signed int>(len) < 0 ) )
{
return -1;
}
// If we perform a copy
if ( dest != 0 )
{
if (len != 0)
{
DCHAR* d = dest;
const SCHAR* s = src;
do
{
if ((*d++ = static_cast<DCHAR>(*s++)) == 0)
{
// NUL pad the remaining n-1 bytes
while (--len != 0)
*d++ = 0;
break;
}
} while (--len != 0);
return static_cast<size_t>( d - dest );
}
return 0;
}
// Otherwise just calc length
return ACE_OS::strlen( src );
}
#if !defined(ACE_LACKS_WCSTOMBS)
template <> inline
size_t string_copy (char* s, const wchar_t* t, size_t len)
{
#if defined(ACE_WIN32)
// When VC6 support is dropped use wcstombs
if ( t == 0 )
return -1;
int size = ::WideCharToMultiByte(
CP_OEMCP, 0,
t, -1,
s, (s ? len : 0),
0, 0 );
// wcstombs returns len NOT size when dest == 0
return ( s == 0 ? size - 1 : size );
#else
return ::wcstombs( s, t, len );
#endif
}
#endif /* !ACE_LACKS_WCSTOMBS */
#if !defined(ACE_LACKS_MBSTOWCS)
template <> inline
size_t string_copy (wchar_t* s, const char* t, size_t len)
{
#if defined(ACE_WIN32)
// When VC6 support is dropped use mbstowcs
if ( t == 0 )
return -1;
int size = ::MultiByteToWideChar(
CP_OEMCP, 0,
t, -1,
s, (s ? len : 0) );
// mbstowcs returns len NOT size when dest == 0
return ( s == 0 ? size - 1 : size );
#else
return ::mbstowcs( s, t, len );
#endif
}
#endif
}
#endif
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