[Geographiclib-announce] GeographicLib 1.49 (released 2017-10-05)

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

Changes between 1.49 (released 2017-10-05) and 1.48 versions:

  * Add the Enhanced Magnetic Model 2017, emm2017. This is valid for
    2000 thru the end of 2021.

  * Avoid potential problems with the order of initializations in DMS,
    GARS, Geohash, Georef, MGRS, OSGB, SphericalEngine; this only would
    have been an issue if GeographicLib objects were instantiated
    globally. Now no GeographicLib initialization code should be run
    prior to the entry of main().

  * To support the previous fix, add an overload, Utility::lookup(const
    char* s, char c).

  * NearestNeighbor::Search throws an error if pts is the wrong size
    (instead of merely returning no results).

  * Use complex arithmetic for Clenshaw sums in TransverseMercator and
    tranmerc_{fwd,inv}.m.

  * Changes in cmake support:
    + fix compiler flags for GEOGRAPHICLIB_PRECISION = 4;
    + add CONVERT_WARNINGS_TO_ERRORS option (default OFF), if ON then
      compiler warnings are treated as errors.

  * Fix warnings about implicit conversions of doubles to bools in C++,
    C, and JavaScript packages.

  * Binary installers for Windows now use Visual Studio 14 2015.