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Extend release notes

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Included some changes that weren't updated at the time of merging,
and also results of a new runtime benchmark.
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Martin Hořeňovský 2021-02-13 15:29:50 +01:00
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@ -123,19 +123,35 @@ new design.
* `EventListenerBase` now directly derives from `IStreamingReporter`, instead of deriving from `StreamingReporterBase` * `EventListenerBase` now directly derives from `IStreamingReporter`, instead of deriving from `StreamingReporterBase`
* `GENERATE` decays its arguments (#2012, #2040) * `GENERATE` decays its arguments (#2012, #2040)
* This means that `str` in `auto str = GENERATE("aa", "bb", "cc");` is inferred to `char const*` rather than `const char[2]`. * This means that `str` in `auto str = GENERATE("aa", "bb", "cc");` is inferred to `char const*` rather than `const char[2]`.
* `--list-*` flags write their output to file specified by the `-o` flag
### Improvements ### Improvements
* Matchers have been extended with the ability to use different signatures of `match` (#1307, #1553, #1554, #1843) * Matchers have been extended with the ability to use different signatures of `match` (#1307, #1553, #1554, #1843)
* This includes having templated `match` member function * This includes having templated `match` member function
* See the [rewritten Matchers documentation](matchers.md#top) for details * See the [rewritten Matchers documentation](matchers.md#top) for details
* Catch2 currently provides _some_ generic matchers, but there should be more before final release of v3 * Catch2 currently provides _some_ generic matchers, but there should be more before final release of v3
* So far, `IsEmpty`, `SizeIs`, and `Contains` are provided. * `IsEmpty`, `SizeIs` which check that the range has specific properties
* At least `ElementsAre` and `UnorderedElementsAre` are planned. * `Contains`, which checks whether a range contains a specific element
* Some runtime performance improvements * `AllMatch`, `AnyMatch`, `NoneMatch` range matchers, which apply matchers over a range of elements
* Significant compilation time improvements * Significant compilation time improvements
* including `catch_test_macros.hpp` is 80% cheaper than including `catch.hpp` * including `catch_test_macros.hpp` is 80% cheaper than including `catch.hpp`
* Some runtime performance optimizations
* In all tested cases the v3 branch was faster, so the table below shows the speedup of v3 to v2 at the same task
<a id="v3-runtime-optimization-table"></a>
| task | debug build | release build |
|:------------------------------------------- | ------------:| -------------:|
| Run 1M `REQUIRE(true)` | 1.10 ± 0.01 | 1.02 ± 0.06 |
| Run 100 tests, 3^3 sections, 1 REQUIRE each | 1.27 ± 0.01 | 1.04 ± 0.01 |
| Run 3k tests, no names, no tags | 1.29 ± 0.01 | 1.05 ± 0.01 |
| Run 3k tests, names, tags | 1.49 ± 0.01 | 1.22 ± 0.01 |
| Run 1 out of 3k tests no names, no tags | 1.68 ± 0.02 | 1.19 ± 0.22 |
| Run 1 out of 3k tests, names, tags | 1.79 ± 0.02 | 2.06 ± 0.23 |
* POSIX platforms use `gmtime_r`, rather than `gmtime` when constructing a date string (#2008, #2165)
* `--list-*` flags write their output to file specified by the `-o` flag (#2061, #2163)
### Fixes ### Fixes
* The `INFO` macro no longer contains superfluous semicolon (#1456) * The `INFO` macro no longer contains superfluous semicolon (#1456)