advent-of-code/2021/zig/common.zig
2021-12-13 09:53:03 -06:00

18 lines
566 B
Zig

const std = @import("std");
pub fn readFileContents(file_path: []const u8, alloc: *std.mem.Allocator) anyerror![]u8 {
var gp = std.heap.GeneralPurposeAllocator(.{.safety = true}){};
defer _ = gp.deinit();
const alloc = &gp.allocator;
var path_buffer: [std.fs.MAX_PATH_BYTES]u8 = undefined;
const path = try std.fs.realpath(file_path, &path_buffer);
const file = try std.fs.openFileAbsolute(path, .{ .read = true });
defer file.close();
const fb = try file.readToEndAlloc(alloc, 50000);
defer alloc.free(fb);
return fb;
}