C language simple question, define a function void a(char), char a(char), int a(cha
This should be three function declarations. The first is a function with a return value of void and a parameter character type of. The second a is a function, the return value is character type, and the parameters are character type; The third a is a function with a return value of int and a parameter of character type. This should not just define a function. . .