mirror of
https://codeberg.org/andyscott/ziglings.git
synced 2024-11-08 19:20:47 -05:00
27 lines
1.1 KiB
Zig
27 lines
1.1 KiB
Zig
//
|
|
// Great news! Now we know enough to understand a "real" Hello World
|
|
// program in Zig - one that uses the system Standard Out resource...which
|
|
// can fail!
|
|
//
|
|
const std = @import("std");
|
|
|
|
// Take note that this main() definition now returns "!void" rather
|
|
// than just "void". Since there's no specific error type, this means
|
|
// that Zig will infer the error type. This is appropriate in the
|
|
// case of main(), but can make a function harder (function pointers)
|
|
// or even impossible to work with (recursion) in some situations.
|
|
//
|
|
// You can find more information at:
|
|
// https://ziglang.org/documentation/master/#Inferred-Error-Sets
|
|
//
|
|
pub fn main() !void {
|
|
// We get a Writer for Standard Out so we can print() to it.
|
|
const stdout = std.io.getStdOut().writer();
|
|
|
|
// Unlike std.debug.print(), the Standard Out writer can fail
|
|
// with an error. We don't care _what_ the error is, we want
|
|
// to be able to pass it up as a return value of main().
|
|
//
|
|
// We just learned of a single statement which can accomplish this.
|
|
stdout.print("Hello world!\n", .{});
|
|
}
|