- error::throwExceptions(bool) returning the previous state makes it
easier to set and restore states.
- throwing() method to query the current handling (if required).
- the normal error::throwExceptions() and error::dontThrowExceptions()
also return the previous state, to make it easier to restore later.
- triFace() now initialized with '-1', which makes it behave
equivalently to face(label).
- supply default region=0 for some labelledTri constructors.
This allows labelledTri to work more like a triFace and makes it
easier to use in templated methods and eases conversion from
triFace to a labelledTri.
- labelledTri(const labelUList&) can now be used when converting
from a face. It can have 3 values (use default region)
or 4 values (with region).
- face, triFace, labelledTri now all support construction with
initializer lists. This can be useful for certain types of code.
Eg,
triFace f1{a, b, c};
face f2{a, b, c};
labelledTri f3{a, b, c};
Work without ambiguity.
Also useful for templated methods:
FaceType f{remap[a], remap[b], remap[c]};
