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        There was a bug when using any quadmath expq
        function on GCC : GCC
        bug #60349 caused by mingw-64
        bug #368.
      
        To work round this defect, an alternative implementation of 128-bit exp was
        temporarily provided by boost/cstdfloat.hpp.
      
The mingw bug was fixed at 2014-03-12 and GCC 6.1.1 now works as expected.
| ![[Tip]](../../../../../../doc/src/images/tip.png) | Tip | 
|---|---|
| It is essential to link to the quadmath library | 
.