Zig 0.15.2 I’m writing a program that connects to a TCP address but I want to it to wait for the TCP Address to be available or not. Initially I had `try net.tcpConnectToAddress(address)` in my main function but obviously this exits the program immediately when the socket is not ready. Currently t…

[image] nm-remarkable: Is there a way to match an error set in a switch statement fyi, for the first part of your question, there’s a proposal for error set matching. It was accepted, then unaccepted, but still open (for now)

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Matching on an error set

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error-handling

npc1054657282 January 13, 2026, 10:12am 4

Is there a nicer way to check if an error is in an error set? Help

expectError takes a specific error value as it’s first argument, e.g Error1.Foo, not a whole error set. Here’s a function which tests that a result is an error within the given error set, it takes a bit of type reflection: fn expectErrorSet(ErrorSet: type, result: anytype) !void { if (result) |_| { return error.NotAnError; } else |err| { if (@typeInfo(ErrorSet).error_set) |error_set| for (error_set) |err_info| { if (std.mem.eql(u8, @errorName(err), err_info…

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