GCC 6.1 hits, uses C++14

Version 6.1 of granddaddy C/C++ compiler suite GCC was released today, and is described as a major update.

According to Red Hat's Jakub Jelinek:

The C++ frontend now defaults to C++14 standard instead of C++98 it has been defaulting to previously, for compiling older C++ code that might require either explicitly compiling with selected older C++ standards, or might require some code adjustment, see http://gcc.gnu.org/gcc-6/porting_to.html for details. The experimental C++17 support has been enhanced in this release.

This release features various improvements in the emitted diagnostics, including improved locations, location ranges, suggestions for misspelled identifiers, option names etc., fix-it hints and a couple of new warnings have been added.

The OpenMP 4.5 specification is fully supported in this new release, the compiler can be configured for OpenMP offloading to Intel XeonPhi Knights Landing and AMD HSAIL. The OpenACC 2.0a specification support has been much improved, with offloading to NVidia PTX.

The optimizers have been improved, with improvements appearing in all of intra-procedural optimizations, inter-procedural optimizations, link time optimizations and various target backends.

All the changes are listed here and you can give it whirl live on Matt Godbolt's GCC Explorer. ®

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