Boost C++ Libraries

...one of the most highly regarded and expertly designed C++ library projects in the world. Herb Sutter and Andrei Alexandrescu, C++ Coding Standards

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Exponential function

There is a bug whe using any quadmath expq function on GCC:

GCC bug #60349

mingw-64 bug #368

To work round this defect, an alternative implementation of 128-bit exp is temporarily provided by boost/cstdfloat.hpp.


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