[Numpy-discussion] npymath on Windows

[Sturla Molden]

On 28/12/14 01:59, Matthew Brett wrote:

> As far as I can see, 'acosf' is defined in the msvc runtime library.
> I guess that '_acosf' is defined in some mingw runtime library?

AFAIK it is a GCC built-in function. When the GCC compiler or linker 
sees it the binary code will be inlined.

https://gcc.gnu.org/onlinedocs/gcc-4.9.0/gcc/Other-Builtins.html

Sturla