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  1. #include <iostream>
  2. using namespace std;
  3.  
  4.  
  5. struct Pin {
  6.   unsigned int const mask;
  7.   Pin(unsigned int m) : mask (m) {};
  8.   unsigned int asInput(void) {
  9.     return mask;
  10.   }
  11. };
  12.  
  13.  
  14. void write_config (unsigned int v) {
  15.   cout << v <<endl;
  16. }
  17.  
  18. template<typename It>
  19. void setPins(It start, It end, unsigned int (Pin::*fn)(void) ) {
  20.   unsigned int cfg = 0; // identity for bitwise or
  21.   for (; start != end; ++start) {
  22.     cfg |= ((*start).*fn)(); // need to test that, wait a minute
  23.   }
  24.   write_config(cfg);
  25. };
  26. int main() {
  27. 	Pin pins[] = {1, 2, 4};
  28.     setPins(pins, pins + 3, &Pin::asInput);
  29. 	return 0;
  30. }
Success #stdin #stdout 0s 3096KB
comments (?)
stdin 
Standard input is empty
stdout 
7
https://ideone.com/276ciu
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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