From 485c280e20b0ab5459ab6af48574feab9940483d Mon Sep 17 00:00:00 2001
From: vng <viktor.govako@gmail.com>
Date: Fri, 21 Oct 2011 15:26:04 +0300
Subject: Add read write functions for some std containers.

---
 coding/read_write_utils.hpp | 46 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 46 insertions(+)
 create mode 100644 coding/read_write_utils.hpp

(limited to 'coding/read_write_utils.hpp')

diff --git a/coding/read_write_utils.hpp b/coding/read_write_utils.hpp
new file mode 100644
index 0000000000..fb961834f2
--- /dev/null
+++ b/coding/read_write_utils.hpp
@@ -0,0 +1,46 @@
+#pragma once
+
+#include "varint.hpp"
+
+#include "../std/string.hpp"
+#include "../std/vector.hpp"
+
+
+namespace rw
+{
+  template <class TSink>
+  void Write(TSink & sink, string const & s)
+  {
+    uint32_t const count = static_cast<uint32_t>(s.size());
+    WriteVarUint(sink, count);
+    if (!s.empty())
+      sink.Write(&s[0], count);
+  }
+
+  template <class TSource>
+  void Read(TSource & src, string & s)
+  {
+    uint32_t const count = ReadVarUint<uint32_t>(src);
+    s.resize(count);
+    if (count > 0)
+      src.Read(&s[0], count);
+  }
+
+  template <class TSink, class T>
+  void Write(TSink & sink, vector<T> const & v)
+  {
+    uint32_t const count = static_cast<uint32_t>(v.size());
+    WriteVarUint(sink, count);
+    for (uint32_t i = 0; i < count; ++i)
+      Write(sink, v[i]);
+  }
+
+  template <class TSource, class T>
+  void Read(TSource & src, vector<T> & v)
+  {
+    uint32_t const count = ReadVarUint<uint32_t>(src);
+    v.resize(count);
+    for (size_t i = 0; i < count; ++i)
+      Read(src, v[i]);
+  }
+}
-- 
cgit v1.2.3