wctrans.cpp

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//
// wctrans.cpp
//
//      Copyright (c) Microsoft Corporation.  All rights reserved.
//
// Implementations of the towctrans and wctrans functions.
//
#include <corecrt.h>
#include <ctype.h>
#include <string.h>
#include <wctype.h>
 
#pragma warning(disable:4244)
 
 
 
typedef wchar_t wctrans_t;
 
static struct wctab
{
    char const* s;
    wctype_t    value;
}
const tab[] =
{
    { "tolower", 2 },
    { "toupper", 1 },
    { nullptr,   0 }
};
 
 
 
extern "C" wint_t __cdecl towctrans(wint_t const c, wctrans_t const value)
{
    return value == 1 ? towupper(c) : towlower(c);
}
 
extern "C" wctrans_t __cdecl wctrans(char const* const name)
{
    for (unsigned n = 0; tab[n].s != 0; ++n)
    {
        if (strcmp(tab[n].s, name) == 0)
            return tab[n].value;
    }
 
    return 0;
}
 
/*
 * Copyright (c) 1992-2007 by P.J. Plauger.  ALL RIGHTS RESERVED.
 * Consult your license regarding permissions and restrictions.
 V5.03:0009 */