1 files changed, 48 insertions, 0 deletions
diff --git a/lib/measure.h b/lib/measure.h
new file mode 100644
index 0000000..3474684
--- /dev/null
+++ b/lib/measure.h
@@ -0,0 +1,48 @@
+
+#pragma once
+
+#define POSSIBLE_MEASUREMENTS 4
+const unsigned char measurement_energy        = 1 << 0;
+const unsigned char measurement_clusterSize   = 1 << 1;
+const unsigned char measurement_magnetization = 1 << 2;
+const unsigned char measurement_fourierZero    = 1 << 3;
+
+#ifdef __cplusplus
+
+#include "state.h"
+#include "correlation.h"
+#include <functional>
+
+template <class R_t, class X_t>
+std::function <void(const state_t <R_t, X_t> *)> measurement_energy_file(FILE *file) {
+  return [=](const state_t <R_t, X_t> *s) {
+    float smaller_E = (float)s->E;
+    fwrite(&smaller_E, sizeof(float), 1, file);
+  };
+}
+
+template <class R_t, class X_t>
+std::function <void(const state_t <R_t, X_t> *)> measurement_cluster_file(FILE *file) {
+  return [=](const state_t <R_t, X_t> *s) {
+    fwrite(&(s->last_cluster_size), sizeof(uint32_t), 1, file);
+  };
+}
+
+template <class R_t, class X_t>
+std::function <void(const state_t <R_t, X_t> *)> measurement_magnetization_file(FILE *file) {
+  return [=](const state_t <R_t, X_t> *s) {
+    write_magnetization(s->M, file);
+  };
+}
+
+template <class R_t, class X_t>
+std::function <void(const state_t <R_t, X_t> *)> measurement_fourier_file(FILE *file, fftw_plan plan, double *fftw_in, double *fftw_out) {
+  return [=](const state_t <R_t, X_t> *s) {
+    float smaller_X = (float)correlation_length(s, plan, fftw_in, fftw_out);
+    fwrite(&smaller_X, sizeof(float), 1, file);
+  };
+}
+
+#endif
+
+