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std.c reorganization

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It is now composed of these main sections:
* Declarations that are shared among all operating systems.
* Declarations that have the same name, but different type signatures
  depending on the operating system. Often multiple operating systems
  share the same type signatures however.
* Declarations that are specific to a single operating system.
  - These are imported one per line so you can see where they come from,
    protected by a comptime block to prevent accessing the wrong one.

Closes #19352 by changing the convention to making types `void` and
functions `{}`, so that it becomes possible to update `@hasDecl` sites
to use `@TypeOf(f) != void` or `T != void`. Happily, this ended up
removing some duplicate logic and update some bitrotted feature
detection checks.

A handful of types have been modified to gain namespacing and type
safety. This is a breaking change.

Oh, and the last usage of `usingnamespace` site is eliminated.
This commit is contained in:
Andrew Kelley
2024-07-18 23:35:19 -07:00
parent 16604a93b9
commit e8c4e79499
48 changed files with 9448 additions and 11229 deletions
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12
lib/std/Progress.zig
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@@ -1349,16 +1349,16 @@ fn maybeUpdateSize(resize_flag: bool) void {
}
} else {
var winsize: posix.winsize = .{
.ws_row = 0,
.ws_col = 0,
.ws_xpixel = 0,
.ws_ypixel = 0,
.row = 0,
.col = 0,
.xpixel = 0,
.ypixel = 0,
};
const err = posix.system.ioctl(fd, posix.T.IOCGWINSZ, @intFromPtr(&winsize));
if (posix.errno(err) == .SUCCESS) {
global_progress.rows = winsize.ws_row;
global_progress.cols = winsize.ws_col;
global_progress.rows = winsize.row;
global_progress.cols = winsize.col;
} else {
std.log.debug("failed to determine terminal size; using conservative guess 80x25", .{});
global_progress.rows = 25;