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Add tests for C99 math functions, hypot, atanh, cbrt, etc. #555

Merged
merged 2 commits into from
Aug 13, 2017
Merged

Add tests for C99 math functions, hypot, atanh, cbrt, etc. #555

merged 2 commits into from
Aug 13, 2017

Commits on Aug 6, 2017

  1. Add tests for C99 math functions, hypot, atanh, cbrt, etc. 

    This tests whether the functions are declared in <math.h>.  If they are,
then -DHAVE_C99_MATH=1 is added to the C flags.  The intention is that
this flag is only seen when building proj.4 and shouldn't be referenced
in any of the installed include files.  The next update to geodesic.c
will use this flag.

Left unaddressed is what to do if HAVE_C99_MATH is 0.  The strategy in
geodesic.c is to assume that the missing functions will need to be
defined explicitly.  A less safe alternative is to assume that the
functions are in fact available in libm and that all that needs to be
done is to declare the functions.
    @cffk
    cffk committed Aug 6, 2017
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  2. Fix typo in CMakeLists.txt

    @cffk
    cffk committed Aug 6, 2017
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