GNAT Generic_Fast_Math_Functions g-gfmafu ads (GNAT Reference Manual)

### 13.74 `GNAT.Generic_Fast_Math_Functions` (`g-gfmafu.ads`) ¶

Provides direct access to the underlying implementation of the common mathematical functions, generally from the system mathematical library. This differs from `Ada.Numerics.Generic_Elementary_Functions` in that the implementation may deviate from the semantics specified for these functions in the Reference Manual, for example `Numerics.Argument_Error` is not raised. On selected platforms, some of these functions may also have a vector implementation that can be automatically used by the compiler when auto-vectorization is enabled.