| description | title | ms.date | f1_keywords | helpviewer_keywords | ms.assetid | ||
|---|---|---|---|---|---|---|---|
Learn more about: Compiler Warning (level 1) C4906 | Compiler Warning (level 1) C4906 | 11/04/2016 |
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| 05318e74-799b-412a-9dce-f02b8161d762 |
string literal cast to 'LPWSTR'
The compiler detected an unsafe cast. The cast did succeed, but you should use a conversion routine.
This warning is off by default. See Compiler Warnings That Are Off by Default for more information.
The following sample generates C4906:
// C4906.cpp// compile with: /W1 #pragma warning(default : 4906) #include<windows.h> #include<stdlib.h> #include<stdio.h>intmain() { LPWSTR x = (LPWSTR)"1234"; // C4906// try the following lines instead// char y[128];// size_t numberOfCharConverted = 0;// errcode err = 0;// err = wcstombs_s(&numberOfCharConverted , &y[0], 128,// L"12345", 4);// if (err != 0)// {// printf_s("wcstombs_s failed!");// return -1;// }// printf_s("%s\n", y);return0; }