Hello,

At work we are trying to replace our use of the msvc compiler by mingw64 for 
the compilation of some numeric code.
However we noticed that the "exp" implementation in mingw64 is much slower (8x) 
than in the msvc compiler.

Apparently this is well known: 
https://sourceforge.net/p/mingw-w64/discussion/723797/thread/01b93e82/

I was wondering if the recent addition of ucrt support to the mingw64 toolchain 
could allow the use the math routines from the ucrt
(which are hopefully faster) in place of the current implementations.

Do you know if this would be possible technically and whether there are any 
plans in this direction?

Thanks!

Cheers,
Nicolás

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