Hi, I am using Function to Pointer. i have definded this functin poiter in one structure with two long variable argument. it is giving me error below. Error C212: indirect call: parameters do not fit within registers. though it is given in c51.pdf that it will pass funciton argument with two long variable, i face this error. expecting solution as soon as possible code is like this typedef struct { unsigned long var1; unsigned long var2; void (*funptr) (unsigned long var1,unsigned long var2); }test; void main() { struct test *pt,t; t.vars1 = 6550; t.vars2 = 6551; t.funptr = TESTING; // where TESTING is fucntion definition macro pt->funptr(pt->var1,pt->var2); // here i get error listed above } thanks niraj
Hi dear Dharmesh you solution is working nice for keil again one another solution i found is to pass structure pointer in that pointer to function. so that i can use my code for keil and another compiler also like VC++ typedef struct { unsigned long aa; unsigned long bb; void (*funptr) (test *ts); }test; void TESTING(test *ts) { unsigned long var1,var2; unsigned long tmp; var1 = ts->aa; var2 = ts->bb; tmp=var1; var1=var2; var2=tmp; } void main() { test t; t.aa = 6550; t.bb = 6551; t.funptr = TESTING; t.funptr(&t); }