Quantities like the maximum number of corners per side where
previously set to the 3d value, which is much too large in 2d.
Give the correct values depending on the dimension.

The split is historical, and serves no purpose anymore.

Instead of in a method.  That's more direct and readable.

The old implementation was over-engineered: An edge always
has exactly 2 corners.

They were merely copies of the code & documentation in gm.h.

It was never actually used.

... which explains why it could be set to '0' for prisms and pyramids
without causing any bad effects.

Designated initalizers are easier to read, and they allow the compiler
to catch more bugs.

Update to 2.11

See merge request !244

Add max buffer size to printf functions

See merge request !241

Unbounded buffers triggers warnings in Apple clang

Write a README.md file

See merge request !240

To help people understand what this module is about.

Mark various pointers const

See merge request !239

Found by Cppcheck (constVariablePointer)

Fixes Cppcheck warnings constVariablePointer

Found by clang-tidy (readability-non-const-parameter)

Found by Cppcheck (constParameterPointer).

Improve refine.cc

See merge request !238

Add braces to help human readers

Move many declarations into for loops.

Found by Cppcheck (constVariablePointer, constParameterPointer).

Replace C array by C++ std::array where possible

See merge request !237

Without a performance penalty, std::array knows its
size and offers a more modern and less error-prone
interface.
Found by clang-tidy (modernize-avoid-c-arrays).

Reduce scope of variables, make pointer vars const

See merge request !236

Move variables into for loops.
Move variable declaration closer to first use.

Fix mulitple Cppcheck warnings (constVariablePointer).

Mainly moving variable declarations into for loops.
Fix a warning found by Cppcheck (variableScope).

Some fixups in refine.cc

See merge request !235

Remove unreachable code, reduce some variable's scope

See merge request !234

Move variable to make them more local.
Fox on more Cppcheck warning (variableScope).

Found by Cppcheck (unreadVariable).