std::towctrans

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Defined in header `<cwctype>`

std::wint_t towctrans( std::wint_t wc, std::wctrans_t desc );

Maps the wide character wc using the current C locale's LC_CTYPE mapping category identified by desc.

#include <clocale>
#include <cwctype>
#include <iostream>
#include <algorithm>
std::wstring tohira(std::wstring str)
{
    std::transform(str.begin(), str.end(), str.begin(), [](wchar_t c) {
         return std::towctrans(c, std::wctrans("tojhira"));
    });
    return str;
}
int main()
{
    std::setlocale(LC_ALL, "ja_JP.UTF-8");
    std::wstring kana = L"ヒラガナ";
    std::wcout << "katakana characters " << kana
               << " are " << tohira(kana) << " in hiragana\n";
}

Output:

katakana characters ヒラガナ are ひらがな in hiragana

[edit] See also

wctrans

looks up a character mapping category in the current C locale
(function)

`ch`	-	the wide character to map
`desc`	-	the LC_CTYPE mapping, obtained from a call to std::wctrans

std::towctrans

From Cppreference

Contents

[edit] Parameters

[edit] Return value

[edit] Example

[edit] See also