Added boost header

test/external/boost/gil/extension/io/io_error.hpp

@@ -0,0 +1,51 @@
+/*
+    Copyright 2005-2007 Adobe Systems Incorporated
+   
+    Use, modification and distribution are subject to the Boost Software License,
+    Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+    http://www.boost.org/LICENSE_1_0.txt).
+
+    See http://opensource.adobe.com/gil for most recent version including documentation.
+*/
+/*************************************************************************************************/
+
+#ifndef GIL_IO_ERROR_H
+#define GIL_IO_ERROR_H
+
+/// \file
+/// \brief  Handle input-output errors
+/// \author Lubomir Bourdev and Hailin Jin \n
+///         Adobe Systems Incorporated
+/// \date   2005-2007 \n  Last updated on May 30, 2006
+
+#include <ios>
+#include "../../gil_config.hpp"
+#include <boost/shared_ptr.hpp>
+
+namespace boost { namespace gil {
+
+inline void io_error(const char* descr) { throw std::ios_base::failure(descr); }
+inline void io_error_if(bool expr, const char* descr="") { if (expr) io_error(descr); }
+
+namespace detail {
+    class file_mgr {
+    protected:
+        shared_ptr<FILE> _fp;
+
+        struct null_deleter { void operator()(void const*) const {} };
+        file_mgr(FILE* file) : _fp(file, null_deleter()) {}
+
+        file_mgr(const char* filename, const char* flags) {
+            FILE* fp;
+            io_error_if((fp=fopen(filename,flags))==NULL, "file_mgr: failed to open file");
+            _fp=shared_ptr<FILE>(fp,fclose);
+        }
+
+    public:
+        FILE* get() { return _fp.get(); }
+    };
+}
+
+} }  // namespace boost::gil
+
+#endif