Compiler Warning C4950

  • Article

'type_or_member' : marked as obsolete

A member or type was marked as obsolete with the ObsoleteAttribute.

C4950 is always issued as an error. You can turn off this warning with the #pragma warning or /wd; see warning or /w, /Wn, /WX, /Wall, /wln, /wdn, /wen, /won (Warning Level) for more information.

The following sample generates C4950:

// C4950.cpp
// compile with: /clr
using namespace System;

// Any reference to Func3 should generate an error with message
[System::ObsoleteAttribute("Will be removed in next version", true)]
Int32 Func3(Int32 a, Int32 b) {
   return (a + b);
}

int main() {
   Int32 MyInt3 = ::Func3(2, 2);   // C4950
}