mirror of
https://github.com/ziglang/zig.git
synced 2025-12-07 14:53:08 +00:00
d29871977f
We already have a LICENSE file that covers the Zig Standard Library. We no longer need to remind everyone that the license is MIT in every single file. Previously this was introduced to clarify the situation for a fork of Zig that made Zig's LICENSE file harder to find, and replaced it with their own license that required annual payments to their company. However that fork now appears to be dead. So there is no need to reinforce the copyright notice in every single file.
45 lines
1.5 KiB
Zig
45 lines
1.5 KiB
Zig
const std = @import("../std.zig");
|
|
const builtin = std.builtin;
|
|
const io = std.io;
|
|
const testing = std.testing;
|
|
|
|
pub const CWriter = io.Writer(*std.c.FILE, std.fs.File.WriteError, cWriterWrite);
|
|
|
|
pub fn cWriter(c_file: *std.c.FILE) CWriter {
|
|
return .{ .context = c_file };
|
|
}
|
|
|
|
fn cWriterWrite(c_file: *std.c.FILE, bytes: []const u8) std.fs.File.WriteError!usize {
|
|
const amt_written = std.c.fwrite(bytes.ptr, 1, bytes.len, c_file);
|
|
if (amt_written >= 0) return amt_written;
|
|
switch (@intToEnum(os.E, std.c._errno().*)) {
|
|
.SUCCESS => unreachable,
|
|
.INVAL => unreachable,
|
|
.FAULT => unreachable,
|
|
.AGAIN => unreachable, // this is a blocking API
|
|
.BADF => unreachable, // always a race condition
|
|
.DESTADDRREQ => unreachable, // connect was never called
|
|
.DQUOT => return error.DiskQuota,
|
|
.FBIG => return error.FileTooBig,
|
|
.IO => return error.InputOutput,
|
|
.NOSPC => return error.NoSpaceLeft,
|
|
.PERM => return error.AccessDenied,
|
|
.PIPE => return error.BrokenPipe,
|
|
else => |err| return os.unexpectedErrno(err),
|
|
}
|
|
}
|
|
|
|
test {
|
|
if (!builtin.link_libc or builtin.os.tag == .wasi) return error.SkipZigTest;
|
|
|
|
const filename = "tmp_io_test_file.txt";
|
|
const out_file = std.c.fopen(filename, "w") orelse return error.UnableToOpenTestFile;
|
|
defer {
|
|
_ = std.c.fclose(out_file);
|
|
std.fs.cwd().deleteFileZ(filename) catch {};
|
|
}
|
|
|
|
const writer = cWriter(out_file);
|
|
try writer.print("hi: {}\n", .{@as(i32, 123)});
|
|
}
|