From 603347b3cef5f7d7c24aeab6d69ee3ccb41e6933 Mon Sep 17 00:00:00 2001
From: Will Trimble <trimble@anl.gov>
Date: Fri, 16 Jun 2017 11:13:28 -0500
Subject: [PATCH] Test for EOF at beginning of file--exit gracefully

---
 clipper/fastq-join.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/clipper/fastq-join.cpp b/clipper/fastq-join.cpp
index d8d0169..154802f 100644
--- a/clipper/fastq-join.cpp
+++ b/clipper/fastq-join.cpp
@@ -156,7 +156,7 @@ int main (int argc, char **argv) {
 	{
 		for (i=0;i<in_n;++i) {
 			char c=getc(fin[i]);
-			if (c != '@')  {
+			if (c != '@' && c != EOF)  {
 				fprintf(stderr, "%s doesn't appear to be a fastq file (%c)\n", in[i], c);
 				return 1;
 			}