C++ relational operators are supposed to raise FE_INVALID if an argument is
NaN, use std::isless/greater[equal] instead where they were easy to locate
(though there are other places possibly, mostly min/max and clamp usage was
checked).
Also fixes a copy-paste error making the CPU shader interpreter execute
MINs as MAXs instead.
A lightweight cross-platform/compiler compatibility library.
This library presupposes C++11/14 support. As more compilers get C++14 it will
assume that.
Other parts of the project use this to avoid creating spaghetti linkage. Code
specific to the emulator should be kept out, as not all of the projects that
depend on this need it.
Where possible, C++11/14 STL should be used instead of adding any code in here,
and the code should be kept as small as possible (by reusing STL/etc). Third
party dependencies should be kept to a minimum.
Target compilers:
MSVC++ 2013+
Clang 3.4+
GCC 4.8+.
Target platforms:
Windows 8+ (_win.cc suffix)
Mac OSX 10.9+ (_mac.cc suffix, falling back to _posix.cc)
Linux ? (_posix.cc suffix)
Avoid the use of platform-specific #ifdefs and instead try to put all
platform-specific code in the appropriately suffixed cc files.