Compile error on Embarcadero XE 10.2 (std::isnan)

[simpleb13]

Description

Embarcadero claims C++11 compatibility in their BCC32C and BCC64 compilers, but setting up a test project throws:

[bcc64 Error] catch.hpp(11586): no member named 'isnan' in namespace 'std'

Steps to reproduce

Fails on build with CLang compiler, all default settings for both 32bit & 64bit apps.

Extra information

It appears replacing isnan with _isnan allows it to compile although I'm not knowledgeable enough yet to understand why.
Found the fix here.

• Catch version: v2.4.2
• Operating System: Windows 10 64bit Pro
• Compiler+version: CLang 3.3

[horenmar]

The simple answer is that they did something terrible to their "C++11 compliant" library.

We can provide a polyfill over it, but it will take me at least until the end of the week before I have the time to do so.

[horenmar]

This should be fixed now