`limits.h` required for `UINT_MAX` and not always used, so better to use standard C++ variant from `<limits>`.
Some compilers may simply return `UINT_MAX` value, gcc version: `max() _GLIBCXX_USE_NOEXCEPT { return __INT_MAX__ * 2U + 1; }`.
* [dxgi] Replace MSVC _countof macro with std::size
pro: crosscompiler
con: may not work for older clang/gcc/...
http://en.cppreference.com/w/cpp/iterator/size
For example `Run this code` mode produces errors for GCC-5.2(C++17) and clang-3.8(C++17). Local GCC-7.3 and clang-7 versions are ok.
Not tested w/ MinGW64.
* [dxgi] Replace MSVC _countof macro with std::size
This solves issues in applications that create more than one
swap chain for a given window, and helps applications that
don't like SDL interference in general. Fullscreen support
is currently missing entirely.
