GitLab

- indirect lists, lists of labels
- writeString() methods to avoid any ambiguities

- support handling of mixed element/node data in ensightCase

- the gcc c++/9 includes now inline strncpy, which obliterates
  the previous method of suppressing the warning.
  Now simply allocate additional space for the nul character.

COMP: silence some icc warnings

- make stream constructors explicit

- remove "using std::ifstream", "using std::iofstream" statements
  for a cleaner namespace.

* copy/move assignments for ITstream

* IStringStream: default construct and construct from std::string
  instead of Foam::string

- reduce some overhead in masterOFstream

- simplify Pstream handling of string variants (#1525)

- improved the selection mechanism to include using a bitSet
  cell selection (more efficient and convenient).

  Use templated implementation internally to remove the previous
  reliance on a NullObject.

- use std::string instead of c-string for the string constants

- centralize some definitions of resources into foamVersion.H

  Now expose some of the hard-coded values used in foamEtcFiles()
  so that they can be known or even overridden as required.

  Relocate to src/OpenFOAM/include as a constant location.

- For compatibility, access to the old global names is provided via
  macros
        #define FOAMversion     foamVersion::version
        #define FOAMbuild       foamVersion::build
        #define FOAMbuildArch   foamVersion::buildArch

- this isolation makes it easier to provide additional scoped methods
  for dealing with version related information.  Eg, printBuildInfo()

- make the purpose more explicit, and reduces some work for the
  compiler as well.

- improves backward compatibility and more naming consistency.
  Retain setMany(iter1, iter2) to avoid ambiguity with the
  PackedList::set(index, value) method.

- now treat all mesh geometries as moving, since we cannot know
  beforehand if this is the case.

- use same data mask width as ensightCase (8 digits)

- consolidate geometry time steps with data time steps if possible,
  for a cleaner case file.

- the problem arises since the various surface writers are stateless.
  The collated output format hacks around this limitation by adding in
  its own fieldDict caching (to disk).

  Now include an updateMesh() method to hook into geometry changes.
  This is considered a stop-gap measure until the surface output
  handling is improved.

- since PackedBoolList is now a compatibility typedef for bitSet,
  it is useful to have an additional means of distinction.

STYLE: simplify internal version tests and compiler defines.

- the API version is now conveyed via the OPENFOAM define directly.
  The older OPENFOAM_PLUS define is provided for existing code.

- reduces some ambiguity and clarifies the expected output and
  behaviour.

STYLE: reduce some automatic conversions of char to string

- split now optionally retains empty substrings.
  Added split on fixed field width.

- Foam::name() now formats directly into string buffer, which a
  removes one layer of copying and also avoids using a non-constexpr
  in the temporary.

STYLE: explicit type narrowing on zero-padded output for ensight

- manifest in some parallel operations.

STYLE: update foamToEnsight, foamToEnsightParts to use C++ initializer_list

- avoid warning message when removing a non-existent directory (ensight output).

- part of generalizing the ensight infrastructure (issue #241)

- General bookkeeping when creating ensight files.

- Some commonly used write methods that are independent of
  the calling context (ie, 2D/3D data, geometry, fields)

- Provide singleton null() for ensightFile, ensightGeoFile.
  Can be used for MPI slaves that need a file reference for their
  methods, but will never write to it, but it is also reasonable
  to use an autoPtr with rawRef() for that as well.

- use explicit names within ensightPTraits