The code tried to be too smart and skipped the equality (returning true)
if the payload type was zero-sized.
This optimization is completely wrong when the union payload is a
metatype!
Fixes#7047
Comparisons with absolute epsilons are usually useful when comparing
numbers to zero, for non-zero numbers it's advised to switch to relative
epsilons instead to obtain meaningful results (check [1] for more
details).
The new API introduces approxEqAbs and approxEqRel, where the former
aliases and deprecated the old `approxEq`, allowing the user to pick the
right tool for the job.
The documentation is meant to guide the user in the choice of the
correct alternative.
[1] https://randomascii.wordpress.com/2012/02/25/comparing-floating-point-numbers-2012-edition/
A flag meant to catch recursively-defined types was never reset, leading
the compiler to generate wrong answers when asked for its
type/alignment.
Closes#6850
Explicit and implicit integer casts on vector types are now supported
and follow the same rules as their scalar counterparts.
Implicit float casts are accidentally supported, `@floatCast` is still
not vector-aware.
* remove GetModuleHandleA from kernel32.zig. use of A functions
considered harmful.
* make it a compile error to expose WinMain instead of wWinMain. same
thing.
* start code declares wWinMainCRTStartup instead of WinMainCRTStartup
when it has the choice.
* std.Target.standardDynamicLinkerPath: macOS has a dynamic linker
* no need to override the default dynamic linker in the macos
CrossTarget initialization in the tests
* in getExternalExecutor, when validating the dynamic linker path, take
into account the standard dynamic linker path.
This commit enables stage2 end-to-end tests to run natively on macOS
(where and when applicable). Since QEMU on macOS doesn't support
the same type of architecture emulation as it does on linux (i.e.,
there is no `qemu-x86_64` for instance), this commit ensures that we
specify a path to dynamic linker on macOS (`/usr/lib/dyld`) which
is then checked for existence in `std.CrossTarget.getExternalExecutor()`
function, and if exists, we can run the test natively.
Signed-off-by: Jakub Konka <kubkon@jakubkonka.com>
