Generic Image Library: get_write_device.hpp Source File

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get_write_device.hpp
1//
2// Copyright 2012 Christian Henning
3//
4// Distributed under the Boost Software License, Version 1.0
5// See accompanying file LICENSE_1_0.txt or copy at
6// http://www.boost.org/LICENSE_1_0.txt
7//
8#ifndef BOOST_GIL_IO_GET_WRITE_DEVICE_HPP
9#define BOOST_GIL_IO_GET_WRITE_DEVICE_HPP
10
11#include <boost/gil/detail/mp11.hpp>
12#include <boost/gil/io/device.hpp>
13#include <boost/gil/io/path_spec.hpp>
14
15#include <type_traits>
16
17namespace boost { namespace gil {
18
19template <typename T, typename FormatTag, class Enable = void>
20struct get_write_device {};
21
22template <typename Device, typename FormatTag>
23struct get_write_device
24<
25 Device,
26 FormatTag,
27 typename std::enable_if
28 <
29 mp11::mp_and
30 <
31 detail::is_adaptable_output_device<FormatTag, Device>,
32 is_format_tag<FormatTag>
33 >::value
34 >::type
35>
36{
37 using type =
38 typename detail::is_adaptable_output_device<FormatTag, Device>::device_type;
39};
40
41template <typename String, typename FormatTag>
42struct get_write_device
43<
44 String,
45 FormatTag,
46 typename std::enable_if
47 <
48 mp11::mp_and
49 <
50 detail::is_supported_path_spec<String>,
51 is_format_tag<FormatTag>
52 >::value
53 >::type
54>
55{
56 using type = detail::file_stream_device<FormatTag>;
57};
58
59}} // namespace boost::gil
60
61#endif
boost
defined(BOOST_NO_CXX17_HDR_MEMORY_RESOURCE)
Definition algorithm.hpp:36