Feature request: Compare floats and have NaN be true

[r-barnes]

Description

When I take

CHECK(floating_value1 == floating_value2);

it would be nice to have a way to say "have the check pass if the values are equal or the floats are both NaN".

[dargueta]

If you're using C++11 or higher, you can use std::isnan() defined in the standard cmath header, like so:

CHECK((v1 == v2) || (std::isnan(v1) && std::isnan(v2));