safestr.h

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//
// safestr.h
//
// safe versions of some string manipulation routines
//
 
#ifndef __SAFESTR_H
#define __SAFESTR_H
 
#include <tchar.h>
 
#ifndef tchar
#define tchar TCHAR
#endif//tchar
 
#include <string.h>
#include "assert.h"
 
inline size_t safestrlen ( const tchar *string )
{
    if ( !string )
        return 0;
    return _tcslen(string);
}
 
inline tchar* safestrcpy ( tchar* strDest, const tchar* strSource )
{
    ASSERT(strDest);
    if ( !strSource )
        *strDest = 0;
    else
        _tcscpy ( strDest, strSource );
    return strDest;
}
 
inline tchar* safestrncpy ( tchar* strDest, const tchar* strSource, size_t count )
{
    ASSERT(strDest);
    if ( !strSource )
        count = 0;
    else
        _tcsncpy ( strDest, strSource, count );
    strDest[count] = 0;
    return strDest;
}
 
inline tchar* safestrlwr ( tchar* str )
{
    if ( !str )
        return 0;
    return _tcslwr(str);
}
 
inline tchar* safestrupr ( tchar* str )
{
    if ( !str )
        return 0;
    return _tcsupr(str);
}
 
#endif//__SAFESTR_H