1const std = @import("std");
 2
 3fn captureError(captured: *?anyerror) !void {
 4    errdefer |err| {
 5        captured.* = err;
 6    }
 7    return error.GeneralFailure;
 8}
 9
10test "errdefer capture" {
11    var captured: ?anyerror = null;
12
13    if (captureError(&captured)) unreachable else |err| {
14        try std.testing.expectEqual(error.GeneralFailure, captured.?);
15        try std.testing.expectEqual(error.GeneralFailure, err);
16    }
17}
18
19// test