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Chris Boesch 2025-12-28 01:55:06 +01:00
parent 21f86f07ad
commit b33fd5a744
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2 changed files with 11 additions and 11 deletions
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14
exercises/026_hello2.zig
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@ -5,6 +5,9 @@
//
const std = @import("std");
// Instance for input/output, we'll learn how to create them later.
const io = std.Options.debug_io;
// 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
@ -15,17 +18,14 @@ const std = @import("std");
// https://ziglang.org/documentation/master/#Inferred-Error-Sets
//
pub fn main() !void {
// We need an io instance for I/O operations;
// we'll learn how to create them later.
const io = std.Options.debug_io;
// We get a Writer for Standard Out so we can print() to it.
var stdout = std.Io.File.stdout().writer(io, &.{});
// We get a Writer interface for Standard Out so we can print() to it.
var stdout_writer = std.Io.File.stdout().writer(io, &.{});
const stdout = &stdout_writer.interface;
// 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.interface.print("Hello world!\n", .{});
stdout.print("Hello world!\n", .{});
}

8
patches/patches/026_hello2.patch
View File

@ -1,9 +1,9 @@
--- exercises/026_hello2.zig 2025-12-27 21:15:21.403899392 +0100
+++ answers/026_hello2.zig 2025-12-27 20:28:53.267236800 +0100
--- exercises/026_hello2.zig 2025-12-28 01:51:16.537444980 +0100
+++ answers/026_hello2.zig 2025-12-28 01:51:10.280322328 +0100
@@ -27,5 +27,5 @@
// 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.interface.print("Hello world!\n", .{});
+ try stdout.interface.print("Hello world!\n", .{});
- stdout.print("Hello world!\n", .{});
+ try stdout.print("Hello world!\n", .{});
}