This is the normal way of making compound macros behave like statements
and allowing macro invocations that look like function calls to work
just like if they were function calls.
Before ICU 65, function-like, multi-statement ICU macros were just
defined as series of statements wrapped in { } blocks and the caller
could choose to either treat them as if they were actual functions and
end the invocation with a trailing ; creating an empty statement after
the block or else omit this trailing ; using the knowledge that the
macro would expand to { }.
To continue supporting code that depends on that old behaviour, on being
able to omit the trailing ; when invoking one of these macros, the new
surrounding do { } while is done through preprocessor defines that can
easily be overridden at compile time, when needed.
Using the C++ SFINAE (substitution failure is not an error) technique,
it's possible to provide an icu::StringPiece constructor that accepts
any string view type that might be available in the current compilation
unit, without adding any additional dependencies or configuration flags
to ICU.
This also changes the pkgdata tool command line options to decouple the
ARM/ARM64 flags from the UWP flag, and adds a generic architecture
option (-a) for passing in the value of the linker "/MACHINE:" argument
on the command line. (Ex: -a ARM64).
Additionally this change also adds another option to pkgdata (-b) to
set /DYNAMICBASE on the data DLL, which is required for the ARM64 builds.
Both of these changes also work towards future work in order to enable
full ARM64 desktop builds without UWP.
This change also removes a number of ifdefs/forks in the ICU code based
on U_PLATFORM_HAS_WINUWP_API, and changes them to use ICU_DATA_DIR_WINDOWS
instead. This is needed to unblock the usage of the data DLL in the
UWP scenario, but also helps to further reduce the divergence of the UWP
projects from regular Windows builds.
Related tickets:
ICU4C: Remove fixed DLL base addresses when building Windows DLLs
https://unicode-org.atlassian.net/browse/ICU-20768
Add support to generate ICU data DLL for Windows arm64
https://unicode-org.atlassian.net/browse/ICU-20670
The way these macros currently are defined, the code compiles also
without the final semicolons. But for consistency and in order to allow
the macro definitions to be updated also these macro invocations should
have final semicolons just like in the rest of this code base.
This adds a separate CI build that enables -Werror for clang.
This also fixes all of the -Wall -Wextra warnings in the tests, and all the
-Wextra-semi warnings as well.
This change adds support for building the ICU4C UWP projects for ARM64.
Additionally it adds CI builds for ARM32 and ARM64.
Co-Authored-By: Daniel Ju <daju@microsoft.com>
The Azure DevOps VM images that are used in the CI builds recently
updated the version of MSYS that is installed, which is causing the
MSYS builds to fail. It seems that this new version has issues with
using the shell cmd method in the makefiles to obtain the current path.
However, we can avoid this entirely by using the cygpath utility, which
also avoids the overhead of launching a new cmd instance just to get
the path. Unfortunately, it seems that older versions of MSYS don't
have this utility program included by default, though versions of
MSYS 2 and up do have it included by default.
We can continue using the old approach for the older versions and use
the cygpath approach for new versions.
RulebasedCollator().
ICU-20652 Adds test/fuzzer/Makefile (auto-generated upon ICU4C configuration)
to .gitignore.
ICU-20652 In response to PR#693 review, corrects allocation size of char16_t
buffer.
While at it, adds generated files to .gitignore.
