Mikroelektronika MIKROE-738 Datenbogen

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mikoC PRO for PIC32

MikroElektronika

Function Pointers

Function Pointers are pointers, i.e. variables, which point to the address of a function.

   int (*pt2Function) (float, char, char); 

Note:     Thus functions and function pointers with different calling convention (argument order, arguments type or  

 

return type is different) are incompatible with each other. 

Assign an address to a Function Pointer

It’s quite easy to assign the address of a function to a function pointer. Simply take the name of a suitable and known 

function. Using the address operator & infront of the function’s name is optional. 

  int DoIt  (float a, char b, char c){ return a+b+c; }

  pt2Function = &DoIt;  // assignment              

  

Example:

int addC(char x,char y){

  return x+y;

}

int subC(char x,char y){

  return x-y;

}

int mulC(char x,char y){

  return x*y;

}

int divC(char x,char y){

  return x/y;

}

int modC(char x,char y){

  return x%y;

}