C++23 <stdfloat>

[gpeterhoff]

The file is not recognized as a header file, even if it is compiled with -std=c++23 or -std=gnu++23.
As a result, the types std::floatX_t are not recognized by the CDT indexer.
This in turn has the consequence that functions with these types as arguments always produce the warning “invalid arguments” from the CDT indexer - the compiler itself works of course.

So: there are masses of false positive warnings.