From 66873d7ee6dd369dd3d8c1909d6376ed2bce4cc7 Mon Sep 17 00:00:00 2001
From: cjamin <cjamin@636b058d-ea47-450e-bf9e-a15bfbe3eedb>
Date: Wed, 31 May 2017 11:54:55 +0000
Subject: Check if birth <= death

git-svn-id: svn+ssh://scm.gforge.inria.fr/svnroot/gudhi/branches/read_persistence_from_file@2488 636b058d-ea47-450e-bf9e-a15bfbe3eedb

Former-commit-id: fc7aeca7ca7cd1ec2e9a9263849ec34d4dfa8414
---
 src/common/include/gudhi/reader_utils.h | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'src/common/include/gudhi')

diff --git a/src/common/include/gudhi/reader_utils.h b/src/common/include/gudhi/reader_utils.h
index bb744b1c..6a89ce90 100644
--- a/src/common/include/gudhi/reader_utils.h
+++ b/src/common/include/gudhi/reader_utils.h
@@ -24,6 +24,7 @@
 #define READER_UTILS_H_
 
 #include <gudhi/graph_simplicial_complex.h>
+#include <gudhi/Debug_utils.h>
 
 #include <boost/graph/adjacency_list.hpp>
 
@@ -321,6 +322,7 @@ void read_persistence_diagram_from_file(std::string const& filename, OutputItera
       if (n >= 2) {
         //int field = (n == 4 ? static_cast<int>(numbers[0]) : -1);
         int dim = (n >= 3 ? static_cast<int>(numbers[n - 3]) : -1);
+        GUDHI_CHECK(numbers[n - 2] <= numbers[n - 1], "Error: birth > death.");
         *out++ = std::make_tuple(dim, numbers[n - 2], numbers[n - 1]);
       }
     }
@@ -353,6 +355,7 @@ std::map<int, std::vector<std::pair<double, double>>> read_persistence_diagram_f
       int n = sscanf(line.c_str(), "%lf %lf %lf %lf", &numbers[0], &numbers[1], &numbers[2], &numbers[3]);
       if (n >= 2) {
         int dim = (n >= 3 ? static_cast<int>(numbers[n - 3]) : -1);
+        GUDHI_CHECK(numbers[n - 2] <= numbers[n - 1], "Error: birth > death.");
         ret[dim].push_back(std::make_pair(numbers[n - 2], numbers[n - 1]));
       }
     }
@@ -391,7 +394,10 @@ std::vector<std::pair<double, double>> read_persistence_diagram_from_file(std::s
       int n = sscanf(line.c_str(), "%lf %lf %lf %lf", &numbers[0], &numbers[1], &numbers[2], &numbers[3]);
       int dim = (n >= 3 ? static_cast<int>(numbers[n - 3]) : -1);
       if (n >= 2 && (only_this_dim == -1 || dim == only_this_dim))
+      {
+        GUDHI_CHECK(numbers[n - 2] <= numbers[n - 1], "Error: birth > death.");
         ret.push_back(std::make_pair(numbers[n - 2], numbers[n - 1]));
+      }
     }
   }
 
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