From 4dd562a8fd8acff887f65ca628d6bf112ba56a37 Mon Sep 17 00:00:00 2001
From: Jaron Kent-Dobias <jaron@kent-dobias.com>
Date: Mon, 9 Sep 2019 15:37:37 -0400
Subject: more precision in output strings, and clang-format

---
 metastable.cpp | 29 ++++++++++++++++++++---------
 1 file changed, 20 insertions(+), 9 deletions(-)

diff --git a/metastable.cpp b/metastable.cpp
index cb47ffc..bebb96a 100644
--- a/metastable.cpp
+++ b/metastable.cpp
@@ -1,17 +1,25 @@
 
 #define WOLFF_USE_FINITE_STATES
 
-#include <iostream>
 #include <cstring>
 #include <fstream>
-
+#include <iostream>
+#include <sstream>
 
 #include "randutils/randutils.hpp"
 #include "wolff/lib/wolff_models/ising.hpp"
 
 using namespace wolff;
 
-void update_distribution_file(std::string id, const std::vector<uint64_t>& data, std::string model_string) {
+template <typename T> std::string to_string_with_precision(const T a_value, const int n = 12) {
+  std::ostringstream out;
+  out.precision(n);
+  out << std::fixed << a_value;
+  return out.str();
+}
+
+void update_distribution_file(std::string id, const std::vector<uint64_t>& data,
+                              std::string model_string) {
   std::string filename = model_string + id + ".dat";
   std::ifstream file(filename);
 
@@ -30,13 +38,14 @@ void update_distribution_file(std::string id, const std::vector<uint64_t>& data,
   std::ofstream file_out(filename);
 
   for (unsigned i = 0; i < data.size(); i++) {
-    file_out <<std::fixed<< data_old[i] + data[i] << " ";
+    file_out << std::fixed << data_old[i] + data[i] << " ";
   }
 
   file_out.close();
 }
 
-void update_distribution_file(std::string id, const std::vector<std::vector<uint64_t>>& data, std::string model_string) {
+void update_distribution_file(std::string id, const std::vector<std::vector<uint64_t>>& data,
+                              std::string model_string) {
   std::string filename = model_string + id + ".dat";
   std::ifstream file(filename);
 
@@ -81,13 +90,15 @@ private:
   std::string model_string;
 
 public:
-  meas(const system<ising_t, ising_t, graph<>>& S, double H) : mag_dist(S.nv + 1, 0), energy_mag_dist(S.nv + 1) {
+  meas(const system<ising_t, ising_t, graph<>>& S, double H)
+      : mag_dist(S.nv + 1, 0), energy_mag_dist(S.nv + 1) {
     M = S.nv * S.s[0];
     E = S.ne;
     for (std::vector<uint64_t>& d : energy_mag_dist) {
       d.resize(S.ne + 1, 0);
     }
-    model_string = "metastable_" + std::to_string(S.G.D) + "_" + std::to_string(S.G.L) + "_" + std::to_string(S.T) + "_" + std::to_string(H) + "_";
+    model_string = "metastable_" + std::to_string(S.G.D) + "_" + std::to_string(S.G.L) + "_" +
+                   to_string_with_precision(S.T) + "_" + to_string_with_precision(H) + "_";
   }
 
   ~meas() {
@@ -95,8 +106,8 @@ public:
     update_distribution_file("e", energy_mag_dist, model_string);
   }
 
-  void plain_bond_visited(const system<ising_t, ising_t, graph<>>&, const typename graph<>::halfedge&, const ising_t&,
-                          double dE) override {
+  void plain_bond_visited(const system<ising_t, ising_t, graph<>>&,
+                          const typename graph<>::halfedge&, const ising_t&, double dE) override {
     if (dE > 0) {
       E -= 2;
     } else {
-- 
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