Compiler Warning (level 1) C4806
Visual Studio 2005
Error Message
'operation' : unsafe operation: no value of type 'type' promoted to type 'type' can equal the given constantThis message warns against code such as b == 3, where b has type bool. The promotion rules cause bool to be promoted to int. This is legal, but it can never be true. The following sample generates C4806:
// C4806.cpp
// compile with: /W1
int main()
{
bool b = true;
// try..
// int b = true;
if (b == 3) // C4806
{
b = false;
}
}
