Compiler Warning (level 4) C4207


For the latest documentation on Visual Studio 2017 RC, see Visual Studio 2017 RC Documentation.

nonstandard extension used : extended initializer form

With Microsoft extensions (/Ze), you can initialize an unsized array of char using a string within braces.

// C4207.c  
// compile with: /W4  
char c[] = { 'a', 'b', "cdefg" }; // C4207  
int main()  

Such initializations are invalid under ANSI compatibility (/Za).