From ea27ba8f280eede62ffe9d36df6581aa6ef8bd2e Mon Sep 17 00:00:00 2001
From: Anton Pirogov <anton.pirogov@gmail.com>
Date: Mon, 3 Apr 2017 12:56:45 +0200
Subject: [PATCH] fix reading fasta from stdin

---
 src/macle.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/macle.cpp b/src/macle.cpp
index c7077bb..b636e8e 100644
--- a/src/macle.cpp
+++ b/src/macle.cpp
@@ -86,8 +86,8 @@ bool check_unique_names(FastaFile &ff) {
 void processFile(char const *file) {
   ComplexityData dat;
 
-  //infer whether it is an index (user can forget -i)
-  if (with_file_in(file, readMagic))
+  //infer whether given file is an index (user can forget -i)
+  if (file && with_file_in(file, readMagic))
     args.i = true;
 
   if (args.i) { //load from index