zig/test/behavior/generics_llvm.zig

const std = @import("std");
const expect = std.testing.expect;

const foos = [_]fn (anytype) bool{
    foo1,
    foo2,
};

fn foo1(arg: anytype) bool {
    return arg;
}
fn foo2(arg: anytype) bool {
    return !arg;
}

test "array of generic fns" {
    try expect(foos[0](true));
    try expect(!foos[1](true));
}

test "generic struct" {
    var a1 = GenNode(i32){
        .value = 13,
        .next = null,
    };
    var b1 = GenNode(bool){
        .value = true,
        .next = null,
    };
    try expect(a1.value == 13);
    try expect(a1.value == a1.getVal());
    try expect(b1.getVal());
}
fn GenNode(comptime T: type) type {
    return struct {
        value: T,
        next: ?*GenNode(T),
        fn getVal(n: *const GenNode(T)) T {
            return n.value;
        }
    };
}