[ALACPP] the pleasure of counting

[Jon Stewart <stew1@xxxxxxxxxxx>]

#include <iostream>

template<int N> struct Int2Type {
  enum {
    value = N
  };
  operator int() const { return N; }
};

typedef struct { char a[20]; } RT2;

char defined(int);

template <int N, int LINE, bool b> struct Counter; 

template <int N, int LINE> struct Counter<N, LINE, false> {
  enum { value = N-1 };
};

template <int N, int LINE> struct Counter<N, LINE, true> {
  enum { value = Counter< N+1, LINE,
	(sizeof(defined(Int2Type<N>())) != sizeof(char)) >::value };

};

RT2 defined(Int2Type< Counter< 0, (int)(__LINE__), true >::value >);
RT2 defined(Int2Type< Counter< 0, (int)(__LINE__), true >::value >);

struct STFU {
	enum {
		value = __LINE__
	};
};

int main(int, char *[]) {
  std::cout << Counter<0, STFU::value, true>::value << std::endl;
  return 0;
}
-- 
Jon Stewart
stew1@xxxxxxxxxxx
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