Use of Openlibm

Hello Julia community, I am working on a project(written in C/C++,Octave) where I have to make the C math library function work consistently across compilers and operating systems. For this, One solution that comes is the use of Openlibm. Since I am new to Openlibm, I have a few doubts regarding this. a Does openlibm supports function overloading like c++? b Does c++ stdlib always guaranteed to implement its methods relying on functions in the C math library that can be overridden by openlibm ?

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