commit b5302fee81f0b1c46520c96ec7fa7b2d7e2289f2
Author:     Alex Mayfield <alexmax2742@gmail.com>
AuthorDate: Mon Feb 13 00:52:13 2017 -0500
Commit:     Alex Mayfield <alexmax2742@gmail.com>
CommitDate: Mon Feb 13 00:52:13 2017 -0500

    Missing header, tidy up code
---
 midiproc/buffer.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/midiproc/buffer.c b/midiproc/buffer.c
index 1e9d34da..1464b999 100644
--- a/midiproc/buffer.c
+++ b/midiproc/buffer.c
@@ -17,6 +17,8 @@

 #include "buffer.h"

+#include <stdlib.h>
+
 //
 // Create a new buffer.
 //
@@ -33,7 +35,7 @@ buffer_t *NewBuffer()
 //
 // Free a buffer.
 //
-void DeleteBuffer(buffer_t* buf)
+void DeleteBuffer(buffer_t *buf)
 {
     free(buf);
 }
@@ -54,6 +56,7 @@ boolean Buffer_Push(buffer_t *buf, const void *data, int len)
 {
     if (len <= 0)
     {
+        // Do nothing, successfully.
         return true;
     }

@@ -90,12 +93,14 @@ void Buffer_Shift(buffer_t *buf, int len)
 {
     if (len <= 0)
     {
+        // Do nothing.
         return;
     }

     ptrdiff_t max_shift = buf->data_end - buf->data;
     if (len >= max_shift)
     {
+        // If the operation would clear the buffer, just zero everything.
         Buffer_Clear(buf);
     }
     else