From c588ddea2df37d1bd3d58b893009455d154616c3 Mon Sep 17 00:00:00 2001
From: Callan Taylor <31758692+CallanTaylor@users.noreply.github.com>
Date: Wed, 13 Nov 2019 17:28:23 +1300
Subject: [PATCH] Close unclosed files (#735)

* Cose unclosed files

* Close additional unclosed file

* Dont use defer in loop

* Removed missed instances of defer in loop
---
 eBook/examples/chapter_11/static.go        | 1 +
 eBook/examples/chapter_12/cat.go           | 1 +
 eBook/examples/chapter_12/gzipped.go       | 1 +
 eBook/examples/chapter_12/read_files.go    | 1 +
 eBook/exercises/chapter_12/cat_numbered.go | 1 +
 5 files changed, 5 insertions(+)

diff --git a/eBook/examples/chapter_11/static.go b/eBook/examples/chapter_11/static.go
index aca2b75..6df99a5 100644
--- a/eBook/examples/chapter_11/static.go
+++ b/eBook/examples/chapter_11/static.go
@@ -16,6 +16,7 @@ func main() {
 	r = bufio.NewReader(r)
 	r = new(bytes.Buffer)
 	f, _ := os.Open("test.txt")
+	defer f.Close()
 	r = bufio.NewReader(f)
 	var s *bytes.Buffer = new(bytes.Buffer)
 	r = s
diff --git a/eBook/examples/chapter_12/cat.go b/eBook/examples/chapter_12/cat.go
index 7b1627d..707500c 100644
--- a/eBook/examples/chapter_12/cat.go
+++ b/eBook/examples/chapter_12/cat.go
@@ -31,5 +31,6 @@ func main() {
 			continue
 		}
 		cat(bufio.NewReader(f))
+		f.Close()
 	}
 }
diff --git a/eBook/examples/chapter_12/gzipped.go b/eBook/examples/chapter_12/gzipped.go
index aa9e5a5..6e10167 100644
--- a/eBook/examples/chapter_12/gzipped.go
+++ b/eBook/examples/chapter_12/gzipped.go
@@ -17,6 +17,7 @@ func main() {
 			err)
 		os.Exit(1)
 	}
+	defer fi.Close()
 	fz, err := gzip.NewReader(fi)
 	if err != nil {
 		r = bufio.NewReader(fi)
diff --git a/eBook/examples/chapter_12/read_files.go b/eBook/examples/chapter_12/read_files.go
index 74ff6f7..8b8f237 100644
--- a/eBook/examples/chapter_12/read_files.go
+++ b/eBook/examples/chapter_12/read_files.go
@@ -24,5 +24,6 @@ func main() {
 		for line, _, err := r.ReadLine(); err != io.EOF; line, _, err = r.ReadLine() {
 			fmt.Printf("Lines: %v (error %v)\n", string(line), err)
 		}
+		fin.Close()
 	}
 }
diff --git a/eBook/exercises/chapter_12/cat_numbered.go b/eBook/exercises/chapter_12/cat_numbered.go
index fba287d..758c2fb 100755
--- a/eBook/exercises/chapter_12/cat_numbered.go
+++ b/eBook/exercises/chapter_12/cat_numbered.go
@@ -39,5 +39,6 @@ func main() {
 			continue
 		}
 		cat(bufio.NewReader(f))
+		f.Close()
 	}
 }