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We don't need heap allocation

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ktkk 2025-12-04 15:58:57 +00:00
parent c32fe79d4b
commit 9ad1671195
1 changed files with 7 additions and 4 deletions
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11
src/days/day04.zig
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@ -2,7 +2,7 @@ const std = @import("std");
pub const title = "Day 04: Printing Department"; pub const title = "Day 04: Printing Department";
pub fn run(allocator: std.mem.Allocator) !void { pub fn run(_: std.mem.Allocator) !void {
const initial_input = @embedFile("./input/day04.txt"); const initial_input = @embedFile("./input/day04.txt");
//const initial_input = //const initial_input =
// \\..@@.@@@@. // \\..@@.@@@@.
@ -17,9 +17,12 @@ pub fn run(allocator: std.mem.Allocator) !void {
// \\@.@.@@@.@. // \\@.@.@@@.@.
// ; // ;
const input = try allocator.alloc(u8, initial_input.len); var input_buffer = comptime init: {
defer allocator.free(input); var temp: [initial_input.len]u8 = undefined;
@memcpy(input, initial_input); @memcpy(&temp, initial_input);
break :init temp;
};
const input: []u8 = &input_buffer;
var accumulator: u32 = 0; var accumulator: u32 = 0;