I cannot initializate WCHAR

Question

I need to make and WCHAR. But it wont work, and i always get an error:

Error   C2440   'initializing': cannot convert from 'const wchar_t [11]' to 'WCHAR *'
 StateError (active)    E0144   a value of type "const wchar_t *" cannot be used to initialize an entity of type "WCHAR *

My code:

WCHAR *Testlooll = L"TEST";

Duplicate? Guys really? What have WCHAR* to do with TCHAR* (what is in your "ANSWER" duplicate) ? — Bequiny, Sep 02 '18 at 14:49
For the record; *I* voted to close this as off-topic due to the lack of a [mcve]. — Jesper Juhl, Sep 02 '18 at 14:54

score 1 · Accepted Answer · answered Sep 02 '18 at 17:16

L"TEST" is a string literal of type const wchar_t[5], which is an array of const characters (since the literal exists in read-only memory). You are trying to initialize a WCHAR*, which is a pointer to a non-const character, to point at that array.

Initializing a pointer to non-const character data to point at an array of const character data is deprecated in C++98 (to maintain backwards compatibility with legacy code), and is illegal in C++11 onwards.

You need to change the declaration of Testlooll according:

const WCHAR *Testlooll = L"TEST";

Or:

LPCWSTR Testlooll = L"TEST";

score 0 · Answer 2 · answered Dec 21 '20 at 12:45

In addition to Remy Lebeau's answer, if for some reason you can't modify the defination of Testlooll. You can just cast the const arry to a wchar_t*. For example,

struct someLibaryType
{
    WCHAR *Testlooll
};

someLibaryType a;
a.Testlooll = (wchar_t*)L"TEST";

Someone maybe argue should cast to WCHAR* just keep same with the defination type of Testlooll. But in this context, you've already used L to identify a string, so it has to be wchar_t*.

I cannot initializate WCHAR

2 Answers2

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