| /* |
| 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 |