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Compiler Warning (level 4) C4032


The latest version of this topic can be found at Compiler Warning (level 4) C4032.

formal parameter 'number' has different type when promoted

The parameter type is not compatible, through default promotions, with the type in a previous declaration.

This is an error in ANSI C (/Za) and a warning under Microsoft extensions (/Ze).

// C4032.c  
// compile with: /W4  
void func();  
void func(char);   // C4032, char promotes to int  
int main()