multi optional pattern

z0.zig

const std = @import("std");

pub fn main() void {
    const oa: ?u32 = 0;
    const ob: ?u32 = 1;
    const oc: ?u32 = 2;

    // pattern without "else" codepath
    outer: {
        const a = oa orelse break :outer;
        const b = ob orelse break :outer;
        const c = oc orelse break :outer;

        std.log.debug("a={} b={} c={}", .{a,b,c});
    }

    // pattern with "else" codepath
    outer: {
        inner: {
            const a = oa orelse break :inner;
            const b = ob orelse break :inner;
            const c = oc orelse break :inner;

            std.log.debug("a={} b={} c={}", .{a,b,c});
            break :outer;
        }
        // else codepath
        std.log.debug("one or more null", .{});
    }
}