From 23dae2d97cfbc14f63d3d2c9050d3d4f1ef7bd66 Mon Sep 17 00:00:00 2001
From: Francois Fleuret <francois@fleuret.org>
Date: Mon, 24 Dec 2012 17:47:57 +0100
Subject: [PATCH] Moved all the global variables into Global global;

---
 mtp.cc | 45 +++++++++++++++++++++++----------------------
 1 file changed, 23 insertions(+), 22 deletions(-)

diff --git a/mtp.cc b/mtp.cc
index 300e4a6..d77bd62 100644
--- a/mtp.cc
+++ b/mtp.cc
@@ -35,9 +35,11 @@ using namespace std;
 
 #define FILENAME_SIZE 1024
 
-char trajectory_filename[FILENAME_SIZE];
-char graph_filename[FILENAME_SIZE];
-int verbose;
+struct Global {
+  char trajectory_filename[FILENAME_SIZE];
+  char graph_filename[FILENAME_SIZE];
+  int verbose;
+} global;
 
 void usage(ostream *os) {
   (*os) << "mtp [-h|--help] [--help-formats] [-v|--verbose] [-t|--trajectory-filename <trajectory filename>] [-g|--graph-filename <graph filename>] [<tracking parameter file>]" << endl;
@@ -95,41 +97,41 @@ void do_tracking(istream *in_tracker) {
   timeval start_time, end_time;
   MTPTracker *tracker = new MTPTracker();
 
-  if(verbose) { cout << "Reading the tracking parameters." << endl; }
+  if(global.verbose) { cout << "Reading the tracking parameters." << endl; }
   tracker->read(in_tracker);
 
-  if(verbose) {
+  if(global.verbose) {
     cout << "Building the graph ... "; cout.flush();
     gettimeofday(&start_time, 0);
   }
   tracker->build_graph();
-  if(verbose) { 
+  if(global.verbose) { 
     gettimeofday(&end_time, 0);
     cout << "done (" << diff_in_second(&start_time, &end_time) << "s)." << endl;
   }
 
-  if(verbose) {
+  if(global.verbose) {
     cout << "Tracking ... "; cout.flush();
     gettimeofday(&start_time, 0);
   }
   tracker->track();
-  if(verbose) {
+  if(global.verbose) {
     gettimeofday(&end_time, 0);
     cout << "done (" << diff_in_second(&start_time, &end_time) << "s)." << endl;
   }
 
-  if(strcmp(trajectory_filename, "")) {
-    ofstream out_traj(trajectory_filename);
+  if(strcmp(global.trajectory_filename, "")) {
+    ofstream out_traj(global.trajectory_filename);
     tracker->write_trajectories(&out_traj);
-    if(verbose) { cout << "Wrote " << trajectory_filename << "." << endl; }
+    if(global.verbose) { cout << "Wrote " << global.trajectory_filename << "." << endl; }
   } else {
     tracker->write_trajectories(&cout);
   }
 
-  if(strcmp(graph_filename, "") != 0) {
-    ofstream out_dot(graph_filename);
+  if(strcmp(global.graph_filename, "") != 0) {
+    ofstream out_dot(global.graph_filename);
     tracker->print_graph_dot(&out_dot);
-    if(verbose) { cout << "Wrote " << graph_filename << "." << endl; }
+    if(global.verbose) { cout << "Wrote " << global.graph_filename << "." << endl; }
   }
 
   delete tracker;
@@ -153,21 +155,20 @@ int main(int argc, char **argv) {
   int c;
   int error = 0, show_help = 0;
 
-  strncpy(trajectory_filename, "", FILENAME_SIZE);
-  strncpy(graph_filename, "", FILENAME_SIZE);
-  verbose = 0;
+  strncpy(global.trajectory_filename, "", FILENAME_SIZE);
+  strncpy(global.graph_filename, "", FILENAME_SIZE);
+  global.verbose = 0;
 
-  while ((c = getopt_long(argc, argv, "t:g:hv",
-                          long_options, NULL)) != -1) {
+  while ((c = getopt_long(argc, argv, "t:g:hv", long_options, NULL)) != -1) {
 
     switch(c) {
 
     case 't':
-      strncpy(trajectory_filename, optarg, FILENAME_SIZE);
+      strncpy(global.trajectory_filename, optarg, FILENAME_SIZE);
       break;
 
     case 'g':
-      strncpy(graph_filename, optarg, FILENAME_SIZE);
+      strncpy(global.graph_filename, optarg, FILENAME_SIZE);
       break;
 
     case 'h':
@@ -180,7 +181,7 @@ int main(int argc, char **argv) {
       break;
 
     case 'v':
-      verbose = 1;
+      global.verbose = 1;
       break;
 
     default:
-- 
2.39.5