[Geographiclib-announce] GeographicLib 1.51 (released 2020-11-22)

[Charles K. <ch...@ka...>]

Changes between 1.51 (released 2020-11-22) and 1.50.1 versions:

    * C++11 compiler required for C++ library.  As a consequence:
      + The workaround implementations for C++11 routines (Math::hypot,
        Math::expm1, Math::log1p, Math::asinh, Math::atanh,
        Math::copysign, Math::cbrt, Math::remainder, Math::remquo,
        Math::round, Math::lround, Math::fma, Math::isfinite, and
        Math::isnan) are now deprecated.  Just use the versions in the
        std:: namespace instead.
      + SphericalEngine class, fix the namespace for using streamoff.
      + Some templated functions, e.g., Math::degree(), now have default
        template parameters, T = Math::real.

    * C99 compiler required for C library.

    * Reduce memory footprint in Java implementation.

    * New form of Utility::ParseLine to allow the syntax "KEY = VAL".

    * Add International Geomagnetic Reference Field (13th generation),
      igrf13, which approximates the main magnetic field of the earth for
      the period 1900-2025.

    * More symbols allowed with DMS decoding in C++, JS, and cgi-bin
      packages; see DMS::Decode.

    * Fix bug in cgi-bin argument processing which causes "+" to be
      misinterpreted.

    * Required minium version of CMake is now 3.7.0 (released
      2016-11-11).  This is to work around a bug in find_package for
      cmake 3.4 and 3.5.