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#pragma once
#include <cmath>
#include <stdio.h>
#include "types.h"
/* The following is the minimum definition of a spin class.
*
* The class must contain an M_t and an F_t for holding the sum of an
* integer number of spins and a double-weighted number of spins,
* respectively.
*
* void init(X_t *p);
* void free_spin(X_t p);
* void free_spin(M_t p);
* void free_spin(F_t p);
* X_t copy(X_t x);
* void add(M_t *x1, int factor, X_t x2);
* void add(F_t *x1, double factor, X_t x2);
* M_t scalar_multiple(int factor, X_t x);
* F_t scalar_multiple(double factor, X_t x);
* double norm_squared(F_t x);
* void write_magnetization(M_t M, FILE *outfile);
*
*/
template <class T>
struct height_t {
T x;
typedef T M_t;
typedef double F_t;
};
template <class T>
void init(height_t<T> *ptr) {
ptr->x = (T)0;
}
template <class T>
void free_spin(height_t<T> h) {
// do nothing!
}
template <class T>
void free_spin(T h) {
// do nothing!
}
void free_spin(double h) {
// do nothing!
}
template <class T>
height_t<T> copy(height_t<T> h) {
return h;
}
template <class T>
void add(T *h1, int a, height_t<T> h2) {
(*h1) += a * h2.x;
}
template <class T>
void add(double *h1, double a, height_t<T> h2) {
(*h1) += a * h2.x;
}
template <class T>
T scalar_multiple(int factor, height_t<T> h) {
return factor * h.x;
}
template <class T>
double scalar_multiple(double factor, height_t<T> h) {
return factor * h.x;
}
double norm_squared(double h) {
return pow(h, 2);
}
template <class T>
void write_magnetization(T M, FILE *outfile) {
fwrite(&M, sizeof(T), 1, outfile);
}
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