C language function parameters are empty and void

C language function parameters are empty and void
Is the function parameter null in C language the same effect as marking them with void?

# Include <stdio. h> 2 // int add (); 3 int add (void); 4 int main (void) 5 {6 int I; 7 I = add (5, 6 ); 8 9 printf ("% d \ n", I); 10 return 0; 11} 12 int add (a, B) 13 {14 return a + B; 15}

 

In C language, the most important standard for function declaration detection is the function name. in C language, the parameter name in the function parameter list can be the default data type in the parameter list in C language, and the default value is int. Add () is not equivalent to add (void); add (void () it indicates the receiving parameter. Its type is int, but it is meaningless and will not be used. The prompt is wring;