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Singly-linked list/Element definition: Difference between revisions
Singly-linked list/Element definition (view source)
Revision as of 10:56, 8 April 2022
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</pre>
=={{header|Zig}}==
<lang zig>const std = @import("std");
var arena = std.heap.ArenaAllocator.init(std.heap.page_allocator);
const allocator = arena.allocator();
pub fn LinkedList(comptime Value: type) type {
return struct {
const This = @This();
const Node = struct {
value: Value,
next: ?*Node,
};
head: ?*Node,
tail: ?*Node,
pub fn init() This {
return LinkedList(Value) {
.head = null,
.tail = null,
};
}
pub fn add(this: *This, value: Value) !void {
var newNode = try allocator.create(Node);
newNode.* = .{ .value = value, .next = null };
if (this.tail) |tail| {
tail.next = newNode;
this.tail = newNode;
} else if (this.head) |head| {
head.next = newNode;
this.tail = newNode;
} else {
this.head = newNode;
}
}
};
}</lang>
=={{header|zkl}}==
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