GeographicLib News

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.