error.log

[40/71] Building CXX object CMakeFiles/nana.dir/source/paint/image.cpp.obj
FAILED: d:\Programy\Programowanie\msys2\mingw64\bin\c++.exe   -DMINGW -DNANA_UNICODE -DWIN32 -I../include    -std=gnu++14 -MMD -MT CMakeFiles/nana.dir/source/paint/image.cpp.obj -MF CMakeFiles/nana.dir/source/paint/image.cpp.obj.d -o CMakeFiles/nana.dir/source/paint/image.cpp.obj -c ../source/paint/image.cpp
../source/paint/image.cpp:358:21: error: declaration of 'void nana::paint::image::close()' has a different exception specifier
   void image::close()
                     ^
In file included from ../include/nana/detail/win32/platform_spec.hpp:22:0,
                 from ../include/nana/detail/platform_spec_selector.hpp:18,
                 from ../source/paint/image.cpp:13:
../include/nana/paint/image.hpp:47:8: error: from previous declaration 'void nana::paint::image::close() noexcept'
   void close() noexcept;
        ^
../source/paint/image.cpp:363:23: error: declaration of 'bool nana::paint::image::alpha() const' has a different exception specifier
   bool image::alpha() const
                       ^
In file included from ../include/nana/detail/win32/platform_spec.hpp:22:0,
                 from ../include/nana/detail/platform_spec_selector.hpp:18,
                 from ../source/paint/image.cpp:13:
../include/nana/paint/image.hpp:49:8: error: from previous declaration 'bool nana::paint::image::alpha() const noexcept'
   bool alpha() const noexcept;
        ^
../source/paint/image.cpp:368:28: error: declaration of 'nana::size nana::paint::image::size() const' has a different exception specifier
   nana::size image::size() const
                            ^
In file included from ../include/nana/detail/win32/platform_spec.hpp:22:0,
                 from ../include/nana/detail/platform_spec_selector.hpp:18,
                 from ../source/paint/image.cpp:13:
../include/nana/paint/image.hpp:50:14: error: from previous declaration 'nana::size nana::paint::image::size() const noexcept'
   nana::size size() const noexcept;
              ^

fix.patch

diff --git a/source/paint/image.cpp b/source/paint/image.cpp
index 5374047639a6da910dd61d4493c3fd568b0fb8b2..ee77a0bb4f5dea9b705fec56dfd87d0544d676a6 100644
--- a/source/paint/image.cpp
+++ b/source/paint/image.cpp
@@ -308,7 +308,7 @@ namespace paint
                                std::shared_ptr<image::image_impl_interface> ptr;

                                auto meta = *reinterpret_cast<const unsigned short*>(data);
-
+
                                if (*reinterpret_cast<const short*>("BM") == meta)
                                        ptr = std::make_shared<detail::image_bmp>();
                                else if (*reinterpret_cast<const short*>("MZ") == meta)
@@ -355,17 +355,17 @@ namespace paint
                        return (image_ptr_ ? &image::empty : nullptr);
                }

-               void image::close()
+               void image::close() noexcept
                {
                        image_ptr_.reset();
                }

-               bool image::alpha() const
+               bool image::alpha() const noexcept
                {
                        return (image_ptr_ ? image_ptr_->alpha_channel() : false);
                }

-               nana::size image::size() const
+               nana::size image::size() const noexcept
                {
                        return (image_ptr_ ? image_ptr_->size() : nana::size());
                }