From 7e0f936ccf5a9d5db5fdc52c2b2766304705b462 Mon Sep 17 00:00:00 2001
From: martin <themartinsteinegger@gmail.com>
Date: Sat, 3 Mar 2018 23:11:24 +0900
Subject: [PATCH] Fix nucleotide alignment memory issue

---
 src/alignment/Matcher.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/alignment/Matcher.cpp b/src/alignment/Matcher.cpp
index 9059a0bb6..f3ada9a68 100644
--- a/src/alignment/Matcher.cpp
+++ b/src/alignment/Matcher.cpp
@@ -17,6 +17,7 @@ Matcher::Matcher(int querySeqType, int maxSeqLen, BaseMatrix *m, EvalueComputati
 
     this->maxSeqLen = maxSeqLen;
     nuclaligner=NULL;
+    aligner=NULL;
     if(querySeqType==Sequence::NUCLEOTIDES){
         nuclaligner = new  BandedNucleotideAligner(m, maxSeqLen, gapOpen, gapExtend);
     }else{
@@ -37,7 +38,9 @@ void Matcher::setSubstitutionMatrix(BaseMatrix *m){
 }
 
 Matcher::~Matcher(){
-    delete aligner;
+    if(aligner != NULL){
+        delete aligner;
+    }
     if(nuclaligner != NULL){
         delete nuclaligner;
     }