Added some std wrappers.

std/algorithm.hpp

@@ -0,0 +1,5 @@
+#pragma once
+
+#include <algorithm>
+
+using std::equal;

std/cstdio.hpp

@@ -0,0 +1,3 @@
+#pragma once
+
+#include <cstdio>

std/iostream.hpp

@@ -0,0 +1,13 @@
+#pragma once
+
+#include <iostream>
+
+using std::cin;
+using std::cout;
+using std::cerr;
+
+using std::endl;
+using std::flush;
+
+using std::istream;
+using std::ostream;

std/noncopyable.hpp

@@ -0,0 +1,5 @@
+#pragma once
+
+#include <boost/noncopyable.hpp>
+
+using boost::noncopyable;

std/sstream.hpp

@@ -0,0 +1,5 @@
+#pragma once
+
+#include <sstream>
+
+using std::ostringstream;

std/stdint.hpp

@@ -0,0 +1,3 @@
+#pragma once
+
+#include <stdint.h>

std/string.hpp

@@ -0,0 +1,5 @@
+#pragma once
+
+#include <string>
+
+using std::string;

std/vector.hpp

@@ -0,0 +1,5 @@
+#pragma once
+
+#include <vector>
+
+using std::vector;