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I would like to convert wstring to wchar_t*. I have tried everything what i know, please help. I would like to convert wstring to wchar_t*.

Jones Jones
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  • According to the manual you can obtaine a pointer like this: [std::wstring::c_str](http://en.cppreference.com/w/cpp/string/basic_string/c_str) – Galik Jul 08 '17 at 11:04

3 Answers3

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Did you try reading the reference

const wchar_t* wcs = s.c_str();
K. Kirsz
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    The OP apparently wants a `wchar_t*`, not a `wchar_t const*`, as illustrated in this answer. Starting with C++17, [wstring::data()](https://en.cppreference.com/w/cpp/string/basic_string/data) provides that. – IInspectable Jun 24 '19 at 10:23
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There is no way to convert wstring to wchar_t* but you can convert it to const wchar_t* which is what answer by K.Kirsz says.

This is by design because you can access a const pointer but you shouldn't manipulate the pointer. See a related question and its answers.

The best bet is to create a new string using _wcsdup and access the non const buffer, an ascii example is given there.

For unicode:

    wstring str = L"I am a unicode string";
    wchar_t* ptr = _wcsdup(str.c_str());
    // use ptr here....
    free(ptr); // free memory when done
zar
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I just had this same question and arrived here. Posting my answer a few years later, but this works:

std::wstring wname1 = L"wide string";
wchar_t wname2[1024];
wcscpy(wname2, wname1.c_str());
wchar_t* pfoo = new wchar_t[1024];
wcscpy(pfoo, wname1.c_str());
user33466
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