Does NOT look at the locale the way the C functions do.
int isalnum(int c);
int isalpha(int c);
int iscntrl(int c);
int isdigit(int c);
int isgraph(int c);
int islower(int c);
int isprint(int c);
int ispunct(int c);
int isspace(int c);
int isupper(int c);
int isxdigit(int c);
int isascii(int c);
int isblank(int c);
int toupper(int c);
int tolower(int c);
Tested to match glibc (when using C locale) with this program:
const c = @cImport({
// See https://github.com/ziglang/zig/issues/515
@cDefine("_NO_CRT_STDIO_INLINE", "1");
@cInclude("stdio.h");
@cInclude("string.h");
@cInclude("ctype.h");
});
const std = @import("std");
const ascii = std.ascii;
const abort = std.os.abort;
export fn main(argc: c_int, argv: **u8) c_int {
var i: u8 = undefined;
i = 0;
while (true) {
if (ascii.isAlNum(i) != (c.isalnum(i) > 0)) { abort(); }
if (ascii.isAlpha(i) != (c.isalpha(i) > 0)) { abort(); }
if (ascii.isCtrl(i) != (c.iscntrl(i) > 0)) { abort(); }
if (ascii.isDigit(i) != (c.isdigit(i) > 0)) { abort(); }
if (ascii.isGraph(i) != (c.isgraph(i) > 0)) { abort(); }
if (ascii.isLower(i) != (c.islower(i) > 0)) { abort(); }
if (ascii.isPrint(i) != (c.isprint(i) > 0)) { abort(); }
if (ascii.isPunct(i) != (c.ispunct(i) > 0)) { abort(); }
if (ascii.isSpace(i) != (c.isspace(i) > 0)) { abort(); }
if (ascii.isUpper(i) != (c.isupper(i) > 0)) { abort(); }
if (ascii.isXDigit(i) != (c.isxdigit(i) > 0)) { abort(); }
if (i == 255) { break; }
i += 1;
}
_ = c.printf(c"Success!\n");
return 0;
}
Before, allocator implementations had to provide `allocFn`,
`reallocFn`, and `freeFn`.
Now, they must provide only `reallocFn` and `shrinkFn`.
Reallocating from a zero length slice is allocation, and
shrinking to a zero length slice is freeing.
When the new memory size is less than or equal to the
previous allocation size, `reallocFn` now has the option
to return `error.OutOfMemory` to indicate that the allocator
would not be able to take advantage of the new size.
For more details see #1306. This commit closes#1306.
This commit paves the way to solving #2009.
This commit also introduces a memory leak to all coroutines.
There is an issue where a coroutine calls the function and it
frees its own stack frame, but then the return value of `shrinkFn`
is a slice, which is implemented as an sret struct. Writing to
the return pointer causes invalid memory write. We could work
around it by having a global helper function which has a void
return type and calling that instead. But instead this hack will
suffice until I rework coroutines to be non-allocating. Basically
coroutines are not supported right now until they are reworked as
in #1194.
`--static` is no longer an option. Instead, Zig makes things as static
as possible by default. `-dynamic` can be used to choose a dynamic
library rather than a static one.
`--enable-pic` is a new option. Usually it will be enabled
automatically, but in the case of build-exe with no dynamic libraries
on Linux or freestanding, Zig chooses off by default.
closes#1703closes#1828
Windows doesn't have rpaths for DLLs so we instead add
search paths to Path environment variable when running
an executable that depends on DLLs built with zig build.
* in Zig build scripts, getOutputPath() is no longer a valid function
to call, unless setOutputDir() was used, or within a custom make()
function. Instead there is more convenient API to use which takes
advantage of the caching system. Search this commit diff for
`exe.run()` for an example.
* Zig build by default enables caching. All build artifacts will go
into zig-cache. If you want to access build artifacts in a convenient
location, it is recommended to add an `install` step. Otherwise
you can use the `run()` API mentioned above to execute programs
directly from their location in the cache. Closes#330.
`addSystemCommand` is available for programs not built with Zig
build.
* Please note that Zig does no cache evicting yet. You may have to
manually delete zig-cache directories periodically to keep disk
usage down. It's planned for this to be a simple Least Recently
Used eviction system eventually.
* `--output`, `--output-lib`, and `--output-h` are removed. Instead,
use `--output-dir` which defaults to the current working directory.
Or take advantage of `--cache on`, which will print the main output
path to stdout, and the other artifacts will be in the same directory
with predictable file names. `--disable-gen-h` is available when
one wants to prevent .h file generation.
* `@cImport` is always independently cached now. Closes#2015.
It always writes the generated Zig code to disk which makes debug
info and compile errors better. No more "TODO: remember C source
location to display here"
* Fix .d file parsing. (Fixes the MacOS CI failure)
* Zig no longer creates "temporary files" other than inside a
zig-cache directory.
This breaks the CLI API that Godbolt uses. The suggested new invocation
can be found in this commit diff, in the changes to `test/cli.zig`.
closes#2024
there's a new cli option `--main-pkg-path` which you can use to choose
a different root package directory besides the one inferred from the
root source file
and a corresponding build.zig API:
foo.setMainPkgPath(path)
