* langref: improve the Hello World section
Clarify that a Zig source file must have the .zig extension.
Fix a typo.
* langref: improve the Comments section
- Document how doc comments are used by -femit-docs
- Rename "Doc comments" to "Doc Comments", for consistency
- Clarify that placing a doc comment in an unexpected place is a
compiler error and add two incorrect examples
- Document the current Autodoc behavior, when normal comments are
interleaved with doc comments
- Rewrite the documentation for top-level doc comments
* langref: improve the Zig Test section
Document that the test name can also be an identifier, in addition to a
string literal.
Update the test output for the first test.
Closes#14085
* Sema: upgrade operands to array pointers if possible when emitting
AIR.
* Implement safety checks for length mismatch and aliasing.
* AIR: make ptrtoint support slice operands. Implement in LLVM backend.
* C backend: implement new `@memset` semantics. `@memcpy` is not done
yet.
Now they use slices or array pointers with any element type instead of
requiring byte pointers.
This is a breaking enhancement to the language.
The safety check for overlapping pointers will be implemented in a
future commit.
closes#14040
* docs(std.math): elaborate on difference between absCast and absInt
* docs(std.rand.Random.weightedIndex): elaborate on likelihood
I think this makes it easier to understand.
* langref: add small reminder
* docs(std.fs.path.extension): brevity
* docs(std.bit_set.StaticBitSet): mention the specific types
* std.debug.TTY: explain what purpose this struct serves
This should also make it clearer that this struct is not supposed to provide unrelated terminal manipulation functionality such as setting the cursor position or something because terminals are complicated and we should keep this struct simple and focused on debugging.
* langref(package listing): brevity
* langref: explain what exactly `threadlocal` causes to happen
* std.array_list: link between swapRemove and orderedRemove
Maybe this can serve as a TLDR and make it easier to decide.
* PrefetchOptions.locality: clarify docs that this is a range
This confused me previously and I thought I can only use either 0 or 3.
* fix typos and more
* std.builtin.CallingConvention: document some CCs
* langref: explain possibly cryptic names
I think it helps knowing what exactly these acronyms (@clz and @ctz) and
abbreviations (@popCount) mean.
* variadic function error: add missing preposition
* std.fmt.format docs: nicely hyphenate
* help menu: say what to optimize for
I think this is slightly more specific than just calling it
"optimizations". These are speed optimizations. I used the word
"performance" here.
- Add an example of iterating over consecutive integers using the
range syntax
- Add an example of iterating over multiple objects
- Update the "nested break" and "nested continue" tests to use the
range syntax, instead of a temporary array
- Fix usage string `--skip-code-test` to `--skip-code-tests`.
- Added a token `{#additonal_option|-rdynamic#}` which introduce arbitrary flag to `build-exe/obj/lib` example.
- Fix wasm freestanding example, it now needs explicit export symbols to work.
* @workItemId returns the index of the work item in a work group for a
dimension.
* @workGroupId returns the index of the work group in the kernel dispatch for a
dimension.
* @workGroupSize returns the size of the work group for a dimension.
These builtins are mainly useful for GPU backends. They are currently only
implemented for the AMDGCN LLVM backend.
Make the termColor function more robust, ensuring that the generated
HTML classes are more consistent and that they are supported in the CSS.
Add documentation about the ANSI codes generated by Zig, and remove the
previous comment with the supported colors.
Improve test coverage for the termColor function, and move the tests at
the end of the file before the printShell tests.
Rename the "term color" test to "term supported colors" and add an
additional "term output from zig" test, using test data generated from
the Zig compiler.
Update the langref.html.in CSS to use the new names and remove incorrect
or obsolete colors like .t0_1, .t37 and .t37_1.
Fix support for the 1m color. Change font-weight to normal for the kbd
element, to avoid both the command (like `zig build-exe`) and the first
line of the error message having a bold font.
Rename the "shell parsed" test to "printShell".
Line support in printShell breaks the support to terminal colors, when a
color is active over multiple lines. An example is when printing
reference traces.
Remove line support in printShell, since they are not really necessary
like in printSourceBlock.
In genHtml, remove an empty line when printing the execution of the
executable generated by `zig build-exe`.
Update the "shell parsed" tests.
Remove the call to log.emerg, since it is no longer supported.
Add an extra space after "--build-option1 \", as documented.
Fixes#13280
This should add all remaining missing return types to all builtin
functions.
For @clz, @ctz, and @popCount it uses anytype for the lack of a better
alternative. We already use this return type for other builtin functions in the langref
to indicate that the type is not always the same.
It is not possible to use anytype as the return type for regular
functions but builtin functions are special.
In 41 (Undefined Behavior) . 5 (Integer Overflow) . 3 (Builtin Overflow Functions), it is stated that
> These builtins return a bool of whether or not overflow occurred, as well as returning the overflowed bits:
> * @addWithOverflow
> * @subWithOverflow
> * @mulWithOverflow
> * @shlWithOverflow
but in their definition says that it returns a `tuple`/`struct`.
Example;
`@addWithOverflow(a: anytype, b: anytype) struct { @TypeOf(a, b), u1 }`
Co-authored-by: zooster <r00ster91@proton.me>
This introduces a new builtin function that compiles down to something that results in an illegal instruction exception/interrupt.
It can be used to exit a program abnormally.
This implements the builtin for all backends.
