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//@ run-pass
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fn main() {
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// Simplified test case
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let _ = || 0..=1;
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// Original test case
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let full_length = 1024;
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let range = {
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// do some stuff, omit here
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None
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};
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let range = range.map(|(s, t)| s..=t).unwrap_or(0..=(full_length-1));
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assert_eq!(range, 0..=1023);
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}
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