mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-10-05 20:01:14 +01:00
Richard SmithandGeoff Romer
ce50f181f1
When a `var` is not explicitly given an initializer, initialize it in one of two ways: * If its type implements the new interface `Core.Default`, call `Core.Default.Op` to initialize it. * Otherwise, if its type implements `UnformedInit`, leave it in an unformed state. For now, this is always an uninitialized state, but that will change in the future. * If neither of those apply, the `var` declaration is ill-formed. This is a step towards implementing leads decision #6739 and proposals #257 and #5913. Assisted-by: Gemini 3.1 Pro via Antigravity --------- Co-authored-by: Geoff Romer <gromer@google.com>
29 lines
664 B
Plaintext
29 lines
664 B
Plaintext
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
|
|
// Exceptions. See /LICENSE for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
|
|
// https://adventofcode.com/2024/day/10
|
|
|
|
library "day10_common";
|
|
|
|
import Core library "io";
|
|
import Core library "range";
|
|
import library "io_utils";
|
|
|
|
class Terrain {
|
|
impl as Core.UnformedInit {}
|
|
|
|
fn Read() -> Terrain {
|
|
returned var me: Terrain;
|
|
for (y: i32 in Core.Range(43)) {
|
|
for (x: i32 in Core.Range(43)) {
|
|
me.height[x][y] = ReadChar() - '0';
|
|
}
|
|
SkipNewline();
|
|
}
|
|
return var;
|
|
}
|
|
|
|
var height: array(array(i32, 43), 43);
|
|
}
|