zig iterate over struct fields and print

fields.zig

const std = @import("std");

test "fields" {
    const U1s = packed struct {
        a: u1,
        b: u1,
        c: u1,
    };

    const x = U1s{ .a = 1, .b = 0, .c = 0 };
    inline for (std.meta.fields(@typeOf(x))) |f| {
        std.debug.warn(f.name ++ " {}\n", @as(f.field_type, @field(x, f.name)));
    }
}

For anyone else finding this, with the newest build, 0.11.0, the following is correct:

inline for (std.meta.fields(@TypeOf(x))) |f| {
    std.log.debug(f.name ++ " {any}", .{@as(f.type, @field(x, f.name))});
}