All the previous refactoring to make the assertion fast paths
smaller and faster also allows us to implement the fast paths
just with thread-local and atomic variables, without full mutexes.
However, the performance overhead of thread-safe assertions is
still significant for single threaded usage:
| slowdown | Debug | Release |
|-----------|--------:|--------:|
| fast path | 1.04x | 1.43x |
| slow path | 1.16x | 1.22x |
Thus, we don't make the assertions thread-safe by default, and instead
provide a build-time configuration option that the users can set to get
thread-safe assertions.
This commit is functional, but it still needs some follow-up work:
* We do not need full seq_cst increments for the atomic counters,
and using weaker ones can be faster.
* We brute-force updating the reporter-friendly totals from internal
atomic counters by doing it everywhere. We should properly trace
where this is needed instead.
* Message macros (`INFO`, `UNSCOPED_INFO`, `CAPTURE`, etc) are not
made thread safe in this commit, but they can be made thread safe
in the future, by building on top of this work.
* Add more tests, including with thread-sanitizer, and compiled
examples to the repository. Right now, these changes have been
compiled with tsan manually, but these tests are not added to CI.
Closes#2948
This enables us to generate pkg-config with proper paths if the
installation prefix is decided at install time, e.g. with
```
cmake --install build-dir --prefix /path/to/somewhere
```
It also means that we can use CMake's generator expression to get
the _real_ final name of the libraries, e.g. including debug postfix.
Closes#2979
Turns out that even in GCC, the expression in `__builtin_cosntant_p`
can end up evaluated and side-effects executed. To allow users to
work around this bug, I added a configuration option to disable its
use in internal macros.
Related to #2925
These options are rather low-level and don't need to be seen in the
CMake cache unless you opt into seeing all other advanced options.
This removes a lot of cache entries from the screen when using a GUI
or TUI to view the cache thus making it easier for users to focus on
the cache variables they're more likely to change on a frequent
basis.
* Add missing include for VxWorks build.
std::min is defined in algorithm provides std::min. It appears to be transitively included for most platforms. For VxWorks however this explicit include is required.
* Add option CATCH_CONFIG_PREFIX_MESSAGES to selectively prefix message macros only.
In contrast to CATCH_CONFIG_PREFIX_ALL, this will only prefix the following macros:
I.e. INFO, UNSCOPED_INFO, WARN and CATCH_CAPTURE
This is mainly useful for codebases that use INFO or WARN for their own logging macros.
* Add new `CATCH_CONFIG` option for using `std::getenv`, because PS does not support env vars
* Add PS to platforms that have disabled posix signals.
* Small workaround for PS toolchain bug that prevents it from compiling `std::set` with lambda based comparator.
With the changes to how `-ffile-prefix-map` is detected, Catch2 started propagating the flag to its dependents, which isn't the desired behaviour, the normalization should only apply to Catch2's impl.
the current implementation has two problems:
* `clang-cl` does not know `-ffile-prefix-map`, but in CMake it is
reported as "Clang", so the compiler will warn about an unknown
compiler option.
* XCode's clang in CMake is reported as "AppleClang", so it is not picked
up as "Clang", so it is not passed `-ffile-prefix-map`, even though
it supports it.
Also changed the map so that the normalized `__FILE__` paths are the same
as what the approval tests normalize paths into.
Co-authored-by: Martin Hořeňovský <martin.horenovsky@gmail.com>
This is kinda messy, because there is no good way to signal to
the compiler that some code uses direct comparison of floating
point numbers intentionally, so instead we have to use diagnostic
pragmas.
We also have to over-suppress the test files, because Clang (and
possibly GCC) still issue warnings from template instantiation
even if the instantion site is under warning suppression, so the
template definition has to be under warning suppression as well.
Closes#2406
When the added Bazel configuration flag is enabled,
a default JUnit reporter will be added if the XML
envrioment variable is defined.
Fix include paths for generated config header.
Enable Bazel config by default when building with
Bazel.
Co-authored-by: Martin Hořeňovský <martin.horenovsky@gmail.com>
This includes always compiling the ANSI and None colour
implementations, as they don't need to touch any platform
specific APIs, and removing their respective compile-time
configuration options.
Because the Win32 colour implementation requires Win32-specific
APIs, it is still hidden behind a compile-time toggle,
`CATCH_CONFIG_COLOUR_WIN32` (renamed from `..._COLOUR_WINDOWS`).
The commandline options for colours were also changed. The
option now uses different name, and allows to select between
different implementations, rather than changing whether
the compiled-in colour implementation is used through
"yes/no/default" options.
Most of the changes are completely pointless renaming of constructor
arguments so that they do not use the same name as the type members,
but 🤷Closes#2015
I do not think we need a safeguard against not including files in
CMake anymore, and as it is, it caused annoying false positive about
the default main implementation.
This describes the reality better, as it also links in the rest
of Catch2.
The on-disk name of the static library remains just `Catch2Main`,
as that is what it is -- single main function -- and on-disk artifacts
cannot describe link dependencies.
This also goes for pkg-config installed by our CMake installation.
This includes
* Updating CMake version on Travis
* Adding a `Catch2` subfolder to the `single_include/` folder to
provide this include path both _inside_ the repository, and _outside_.
* Updated examples to build with the new paths
* Other general CMake cleanup
* Every Linux build tracks coverage when running Debug mode
* OS X not supported yet (Future WIP)
* Our own unit tests, non-default reporters and Clara are ignored
