From 76f87cdd966f23106684bb38c127f6bd3f4e9fa3 Mon Sep 17 00:00:00 2001
From: Andrew Kelley <superjoe30@gmail.com>
Date: Tue, 26 Jul 2016 18:13:22 -0700
Subject: [PATCH] std: add OutStream.write_byte

---
 std/io.zig | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/std/io.zig b/std/io.zig
index d64514ac39..8d40bd95d7 100644
--- a/std/io.zig
+++ b/std/io.zig
@@ -63,6 +63,12 @@ pub struct OutStream {
     buffer: [buffer_size]u8,
     index: isize,
 
+    pub fn write_byte(os: &OutStream, b: u8) -> %void {
+        if (os.buffer.len == os.index) %return os.flush();
+        os.buffer[os.index] = b;
+        os.index += 1;
+    }
+
     pub fn write(os: &OutStream, bytes: []const u8) -> %isize {
         var src_bytes_left = bytes.len;
         var src_index: @typeof(bytes.len) = 0;