Visual Studio 2010 - Visual C++
Compiler Error C2379
formal parameter number has different type when promoted
The type of the specified parameter is not compatible, through default promotions, with the type in a previous declaration. This is an error in ANSI C (/Za) and a warning with Microsoft extensions (/Ze).
The following sample generates C2379:
// C2379.c // compile with: /Za void func(); void func(char); // C2379, char promotes to int