catch3/include/internal/catch_session.cpp, branch v2.11.3

Some refactorings:

2020-01-25T08:01:04+00:00

 - Overrides added
 - usages of push_back() replaced with emplace_back()
 - Loop variable made const-refernce
 - NULL replaced with nullptr
 - Names used in the declaration and definition unified
 - size() replaced with empty
 - Identical cases merged

Fixes #1766: Catch terminates when parsing invalid test name

2019-10-19T19:14:06+00:00

Add test for --libidentify command line flag

2019-09-07T18:36:12+00:00

Improve reporting of unmatched filters (#1684)

2019-08-06T18:51:19+00:00

This PR ultimately does 3 things
* Separately tracks matched tests per each filter part (that is, a set of filters separated by an OR (`,`)), which allows Catch2 to report each of the alternative filters that don't match any tests.
* Fixes `-w NoTests` to return non-zero in the process
* Adds tests for `-w NoTests`.

Use _WIN32 macro for detecting MSVC Windows

2019-07-06T14:55:10+00:00

Previously we used `WIN32`, which sometimes does exist, but according to
https://docs.microsoft.com/en-us/cpp/preprocessor/predefined-macros?view=vs-2019
`_WIN32` is the one that is actually provided by the compiler.

Closes #1676.

fix SEGFAULT during construction of Session

2019-05-15T18:14:25+00:00

coloured output tried to write startup exceptions
to stream which was not initialized

Avoid adding a default test spec when none was provided

2019-04-09T09:50:59+00:00

Do not open the output file twice

2019-02-18T17:59:54+00:00

7f229b4f caused the output file to get opened twice, while
some types of files (e.g. named pipes) can be only opened once.

After this change Session::applyCommandLine opens the output file
only when there is an error to print.

fix SEGFAULTs

2019-02-08T09:41:23+00:00

issue was that mutable context had no config thus trying to get stream
caused SEGFAULT

Closes #1533, #1534

Remove redundant move to avoid Wredundant-move with Clang

2018-12-29T21:56:37+00:00

Signed-off-by: Khem Raj