Compiler Warning (level 4) C4204
TOC
Collapse the table of content
Expand the table of content
This documentation is archived and is not being maintained.

Compiler Warning (level 4) C4204

nonstandard extension used : non-constant aggregate initializer

With Microsoft extensions (/Ze), you can initialize aggregate types (arrays, structures, unions, and classes) with values that are not constants.

Example

// C4204.c
// compile with: /W4
int func1()
{
   return 0;
}
struct S1
{
   int i;
};

int main()
{
   struct S1 s1 = { func1() };   // C4204
   return s1.i;
}

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

Show:
© 2016 Microsoft