there's a simple way to check for nan that does not need this header.
hryx on IRC reported that Linux Mint based on ubuntu 16.04, kernel
4.15.0, x86_64 did not have the isnan function.
Before only u0 was special cased in handling a dereference;
now all zero bit types are handled the same way. Dereferencing
a pointer to a zero bit type always gives a comptime-known
result.
This previously had been failing on master branch but went unnoticed
because until 846f72b57c the CI server was mistakenly not actually
running the single-threaded tests with --single-threaded.
This fixes the standard library tests with --single-threaded
--release-fast.
Documentation comments copied here:
On Linux, it is possible that the thread spawned with `spawnThread`
finishes executing entirely before the clone syscall completes. In this
case, `std.os.Thread.handle` will return 0 rather than the
no-longer-existing thread's pid.
* Fixes to divsf3
Embarrassingly failed to notice a section that was unchanged from where
it was copied from mulXf3.zig. The test cases for this function series
div{s,d,t}f3 are very incomplete and don't exercise all code paths.
Remove unnecessary switch from divsf3 left during development from when
I tried to make it generic to support f32, f64, and f128 in one go.
Make runtime safety dependent on whether a test is being run.
* divsf3: switch plus to minus
This fixes comes thanks to Rich Felker from the musl libc project,
who gave me this crucial information:
"to satisfy the abi, your init code has to write the same value
to that memory location as the value passed to the [arch_prctl]
syscall"
This commit also changes the rules for when to build statically
by default. When building objects and static libraries, position
independent code is disabled if no libraries will be dynamically
linked and the target does not require position independent code.
closes#2063
It is sometimes useful to skip generating of the header file (e.g. https://github.com/ziglang/zig/issues/2173), and zig compiler provides an option `--disable-gen-h` to control that behaviour. However, setting `lib.disable_gen_h = true` in a typical `build.zig` didn't append the option to arguments. This commit fixes it and adds a convenient `setDisableGenH` setter.
* Instead of the only color scheme being dark, the language reference
now has a light theme by default, and respects the user's light/dark
preference via prefers-color-scheme media query. Most browsers don't
support this yet, so we just have to wait patiently for the future to
arrive. closes#2172.
* Instead of a side bar index, the index is inline with the rest of the
content. This is simpler and more friendly to all user agents, and means
we don't need the media query for mobile devices. It also makes
back-references work, so now headers link to the table of contents
and the table of contents links to headers.
