Learning C++, I got an operator function in a class but don't know how to call it:
class Getbytes { public: Getbytes(); int operator() (unsigned char* C1, unsigned char* C2) {do something to C1 and C2 and return int; }; } main () { Getbyes myBytes; //Here, how to call the "operator() (unsigned char* C1, unsigned char*C2)"? myBytes?? } You call it as myBytes(); or myBytes.operator(); if you want to be verbose about it.
Of course you also need to pass the arguments the function needs. Like myBytes("foo", "bar");
You can call it like
Getbytes myBytes; unsigned char s1[] = "Hello"; unsigned char s2[] = "World"; myBytes( s1, s2 ); or
myBytes.operator()( s1, s2 ); If the operator does not change the object itself of the class Getbytes then it should be declared like
int operator() (unsigned char* C1, unsigned char* C2) const; 
mainis lacking a return type.mainmust be declared with a return type and the return type must beint. You are also missing a semicolon after the closing}of the class definition. On the other hand the semicolon doesn't belong after a function definition. So the;after the closing}of theoperator()overload does not belong there.