@prazuber
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Регистрация: 29.04.2010
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12.04.2011, 17:19
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| // prime number computation by Erwin Unruh
template <int p, int i>
class is_prime {
public:
enum { prim = (p==2) || (p%i) && is_prime<(i>2?p:0),i-1>::prim
};
};
template<>
class is_prime<0,0> {
public:
enum {prim=1};
};
template<>
class is_prime<0,1> {
public:
enum {prim=1};
};
template <int i>
class D {
public:
D(void*);
};
template <int i>
class Prime_print { // primary template for loop to print prime numbers
public:
Prime_print<i-1> a;
enum { prim = is_prime<i,i-1>::prim
};
void f() {
D<i> d = prim ? 1 : 0;
a.f();
}
};
template<>
class Prime_print<1> { // full specialization to end the loop
public:
enum {prim=0};
void f() {
D<1> d = prim ? 1 : 0;
};
};
#define NUMBER 96
int main()
{
Prime_print<NUMBER> a;
a.f();
} |
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