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Set flags for Intel compiler to prevent incorrect optimization of
arithmetic expressions #826. Guard against nans in sincosdx #834.
Issue #831 is not addressed here (need more information...).
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This attempts to address the geodtest failures noted in #819.
@sebastic can you re-run your tests?
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Now all of geodesic.c is covered except for 3 lines (and 2 of these are
intentionally dead code).
This corresponds to tag v1.49.2-c in the GeographicLib code base.
While testing polygons which encircle the globe multiple times, I
uncovered a problem where the range of the area was not reduced to the
allowed range (either [0, area0) or (-area0/2, area0/2]) correctly.
Since the documentation explicity restricted the calculation of polygon
areas to simple polygons, we'll defer fixing this for now. (However the
intention was always to handle the area "algebraically" so that, for
example, a "bowtie" has zero area. So I will plan on fixing this for
1.50.)
Update copyright dates + NEWS.
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Implement Polygon AddEdge fix in C library (will be version 1.49.2 of C
library for proj 5.0.0).
Still to do: add tests to expand code coverage. This will only affect
geodtest.c which is not part of the compiled library.
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in GeographicLib). Details:
Workaround bugs in handling of -0.0 in fmod and sin in Visual Studio 10,
11, and 12.
Relax unrealistically strict delta for GeodSolve59 in geodtest.
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Having non-const variables of static lifetime or even global scope is
usually a bad idea. These variables are inherently constants, and this
should be enforced.
This required marking some functions as not modifying input parameters
and marking some pointers as pointers to const.
One advantage is that the compiler usually puts const static variables
in a read-only code segment, so they can't be modified physically.
This can be verified with `nm` (on POSIX systems).
To avoid changes to the public API, functions returning non-const
pointers to data tables were left intact, but the returned data may not
be modified. Internally we prefer using the proj_list_* functions over
the pj_get_*_ref functions, because the former return const pointers.
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Only substantial changes are (1) testing the HAVE_C99_MATH flag and
acting accordingly and (2) adding a couple of tests.
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- http://geographiclib.sf.net -> http://geographiclib.sourceforge.io
- backport fixes for warnings messages from some compilers
- change default range for longitude and azimuth to (-180d, 180d]
(instead of [-180d, 180d))
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Improve accuracy of area calculation (fixing a flaw introduced in
version 1.46). Changed files geodesic.[ch3], geodtest.c, geod.1.
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* upgrade geodesic.[ch3]
* add test suite geodtest.c and invoke via cmake's add_test
* increment version to 4.9.3 and library version to 11.0.0
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