Compiler Warning (level 4, off) C4061
enumerator 'identifier' in switch of
enum'enumeration' is not explicitly handled by acaselabel
The specified enumerator identifier has no associated handler in a switch statement that has a default case. The missing case might be an oversight, or it may not be an issue. Whether the missing case is an issue in practice depends on if the default case handles the enumerator. For a related warning on unused enumerators in switch statements that have no default case, see C4062.
This warning is off by default. For more information about how to enable warnings that are off by default, see Compiler Warnings That Are Off by Default.
Example
The following sample generates C4061; add a case for the missing enumerator to fix:
// C4061.cpp
// compile with: /W4
#pragma warning(default : 4061)
enum E { a, b, c };
void func ( E e )
{
switch(e)
{
case a:
case b:
default:
break;
} // C4061 c' not handled
}