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