From 252e7b3414fb1985e58bd89df9382912525c5023 Mon Sep 17 00:00:00 2001
From: Gabriele Sales <gbrsales@gmail.com>
Date: Wed, 12 Jul 2017 16:59:04 +0000
Subject: [PATCH] Fixed implementation of fexists.

g++ 6.2.0 (Ubuntu Yakkety) rejects the current implementation with the
following message:

```
cannot convert 'std::ifstream {aka std::basic_ifstream<char>}' to 'bool' in return
```

An explicit call to the `good()` method of `ifstream` takes care of
the problem.
---
 src/common.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/common.cpp b/src/common.cpp
index 9d077bd..8c4bf44 100644
--- a/src/common.cpp
+++ b/src/common.cpp
@@ -192,7 +192,7 @@ void TrimRead(const string& input_nucs,
 
 bool fexists(const char *filename) {
   ifstream ifile(filename);
-  return ifile;
+  return ifile.good();
 }
 
 bool valid_nucleotides_string(const string &str) {