From 870555f569bc63fecdc7c0b16e72e4e002f21c13 Mon Sep 17 00:00:00 2001
From: Jaron Kent-Dobias <jaron@kent-dobias.com>
Date: Thu, 26 Jul 2018 13:06:54 -0400
Subject: all the R_t have been objectified

---
 lib/symmetric.h | 98 +++++++++++++++++++--------------------------------------
 1 file changed, 32 insertions(+), 66 deletions(-)

(limited to 'lib/symmetric.h')

diff --git a/lib/symmetric.h b/lib/symmetric.h
index 41c8fb6..9e9b6e4 100644
--- a/lib/symmetric.h
+++ b/lib/symmetric.h
@@ -2,84 +2,50 @@
 #pragma once
 
 #include <stdlib.h>
+#include <array>
 #include "types.h"
 #include "potts.h"
 
 template <q_t q>
-class symmetric_t {
+class symmetric_t : public std::array<q_t, q> {
   public:
-    q_t *perm;
-};
-
-template <q_t q>
-void init(symmetric_t<q> *p) {
-  p->perm = (q_t *)malloc(q * sizeof(q_t));
-
-  for (q_t i = 0; i < q; i++) {
-    p->perm[i] = i;
-  }
-}
-
-template <q_t q>
-void free_spin(symmetric_t<q> p) {
-  free(p.perm);
-}
 
-template <q_t q>
-symmetric_t<q> copy(symmetric_t<q> x) {
-  symmetric_t<q> x2;
-  x2.perm = (q_t *)malloc(q * sizeof(q_t));
-
-  for (q_t i = 0; i < q; i++) {
-    x2.perm[i] = x.perm[i];
-  }
-
-  return x2;
-}
-
-template <q_t q>
-potts_t<q> act(symmetric_t<q> r, potts_t<q> s) {
-  potts_t<q> s2;
-  s2.x = r.perm[s.x];
-  return s2;
-}
-
-template <q_t q>
-symmetric_t<q> act(symmetric_t<q> r1, symmetric_t<q> r2) {
-  symmetric_t<q> r3;
-  r3.perm = (q_t *)malloc(q * sizeof(q_t));
-  for (q_t i = 0; i < q; i++) {
-    r3.perm[i] = r1.perm[r2.perm[i]];
-  }
-
-  return r3;
-}
+    symmetric_t() {
+      for (q_t i = 0; i < q; i++) {
+        (*this)[i] = i;
+      }
+    }
 
-template <q_t q>
-potts_t<q> act_inverse(symmetric_t<q> r, potts_t<q> s) {
-  potts_t<q> s2;
+    potts_t<q> act(const potts_t<q> &s) const {
+      return potts_t<q>((*this)[s.x]);
+    }
 
-  q_t i;
+    symmetric_t<q> act(const symmetric_t<q>& r) const {
+      symmetric_t<q> r_rot;
+      for (q_t i = 0; i < q; i++) {
+        r_rot[i] = (*this)[r[i]];
+      }
 
-  for (i = 0; i < q; i++) {
-    if (r.perm[i] == s.x) {
-      break;
+      return r_rot;
     }
-  }
 
-  s2.x = i;
+    potts_t<q> act_inverse(const potts_t<q>& s) const {
+      for (q_t i = 0; i < q; i++) {
+        if ((*this)[i] == s.x) {
+          return potts_t<q>(i);
+        }
+      }
 
-  return s2;
-}
+      exit(EXIT_FAILURE);
+    }
 
-template <q_t q>
-symmetric_t<q> act_inverse(symmetric_t<q> r1, symmetric_t<q> r2) {
-  symmetric_t<q> r3;
-  r3.perm = (q_t *)malloc(q * sizeof(q_t));
-  for (q_t i = 0; i < q; i++) {
-    r3.perm[r1.perm[i]] = r2.perm[i];
-  }
+    symmetric_t<q> act_inverse(const symmetric_t<q>& r) const {
+      symmetric_t<q> r_rot;
+      for (q_t i = 0; i < q; i++) {
+        r_rot[(*this)[i]] = r[i];
+      }
 
-  return r3;
-}
+      return r_rot;
+    }
+};
 
-- 
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