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* Some corrections in response to a review by Kristian Evers
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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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* Free format now in cmd lines, in gie, and in init files
* Corrected handling of defaults
* Add demo of integrated definition and validation
* Repair stack-smashing memmove in get_init
* repair paralist corruption, clean up debug output
* Install test files for nmake builds
* Add many improvements following suggestions by @schwehr
* Be consistent in requiring lower case everywhere in gie.c
Also, this Fixes #703 and Fixes #697
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Add time unit yyyymmdd to unitconvert operation
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Prefixing with t_ is more consistent with the existing parameters
in PROJ, such as x_0 and friends. t_epoch and t_obs is already used
in PJ_deformation. Now users can expect consistency across
time-varying transformations.
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* gie support for builtin errcodes, and other improvements
* allow lower case error constants
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Increase the focus on PJ_COORD as primary datatype: Eliminate use of PJ_TRIPLET etc.
Trim proj.h by removing material that has become unnecessary.
Improve constness
Make proj_factors work in proj.h space, by providing a trimmed down PJ_FACTORS (which even has more meaningful field names)
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Improve error messaging for cct and gie, and do some clean ups in the ellipsoid handling - partially to squash bugs, partially to improve naming consistency which, in turn, improves the readability of the ellipsoid handling code.
Renamed functions:
pj_inherit_ellipsoid_defs has been renamed pj_inherit_ellipsoid_def, while pj_calc_ellps_params has been renamed pj_calc_ellipsoid_params.
The code in get_opt (part of pj_init.c), which handles whether or not an ellipsoid definition should be dragged in from proj_def.dat, has been rewritten. I suspect this was buggy beforehand, and at least the new code is easier to follow (although it may be slightly slower, which is not really a problem as it sits in the setup code, and hence is executed only once).
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* Removed remaining traces of the builtin selftest system. Moved all functionality to test/gie
* Updated Appveyor and Travis build scripts
* Another appveyor script update
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* Poder dual autochecking implementation
* Debugging aid: Improvements in PJ_vgridshift.c and gie.c
* Most likely, the bugbeing tripped is in the gridshift code, so. uncomment suspicious lines in deformation.gie and merge this to support the debugging effort
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proj_create is now indifferent whether or not proj definition terms start with a '+' character. Also, improve gie to support testing this.
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* enter proj_angular_input and proj_angular_output, exit proj_angular_left and proj_angular_right
* remove unused variable 'unit'
* In gie: remove unused func 'torad_if_needed', and add static keyword where needed
* In gie: add some comments
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PJ_OBS eliminated, API adjusted to reflect that we now have only one 4D data type.
2 new API functions added to determine output types of a PJ.
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* Linguistics: Clarify this and that, here and there
* Revert nullification of PJ_cart->fwd, inv
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* Repair gie and cct after breakage due to proj_strtod update
* Remove unused variables
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In order to mimic strtod, proj_strtod now returns 0 and not HUGE_VAL on nonnumeric input. Hence, we must check the return pointers to identify an error.
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Add missing prototype for opt_strip_path()
A bunch of minor oops cleanups
Remove unused functiion cloumn()
Fighting the good fight trying to be *both* POSIX *and* Windows compatible
A few more improvements: 2 missing casts and a potentially uninitialized variable
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improved docs, improved strtod - avoid precision loss for very long fractions
Switch gie.c to use same framework as cct.c
numerous improvements in proj_strtod.c and gie.c
Add gie to the build system
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