This introduces a parallel set of functions to the std.mem.indexOfAny
functions. They simply invert the logic, yielding the first/last index
which is *not* contained in the "values" slice.
Inverting this logic is useful when you are attempting to determine the
initial span which contains only characters in a particular set.
* Document the `indexOfNone` family.
These descriptions are somewhat brief, but the functions themselves are
also simple enough to describe in such a way.
This can be used to escape the usual meaning of `_` to indicate a
non-exhaustive enum and create an enum tag that is a literal underscore,
so zig fmt should allow this syntax.
Before, zig fmt changes
const E = enum { @"_" };
to the semantically different
const E = enum { _ };
After, it remains the same.
The majority of these are in comments, some in doc comments which might
affect the generated documentation, and a few in parameter names -
nothing that should be breaking, however.
This is a small change to help when reading failure logs which makes the
"exited with code 1" and similar message include the test name.
Further enhancements could do the following:
* even if one unit test crashes the process, the parent process
continues running the other unit tests
* ability to test for expected panics (#1356)
* timeouts on individual tests
The previous commit introduced an optimization to the LLVM backend that
makes `@memset` lower more optimally when the element is comptime-known
and has a repeating byte pattern.
By making these functions inline, if the element parameter is
comptime-known at the callsite, it will be comptime-known in the
`@memset` call, causing more use of the LLVM `memset` intrinsic rather
than an inline for loop when using the LLVM backend.
This affects, for example, std.crypto.argon2, which calls
appendNTimesAssumeCapacity with a `[128]u64` as the element. This is now
lowered with a single `memset` call.
