44 lines
821 B
Rust
44 lines
821 B
Rust
#![feature(iterator_step_by)]
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#![feature(inclusive_range_syntax)]
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struct NotARange;
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impl NotARange {
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fn step_by(&self, _: u32) {}
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}
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#[warn(iterator_step_by_zero, range_zip_with_len)]
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fn main() {
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let _ = (0..1).step_by(0);
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// No warning for non-zero step
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let _ = (0..1).step_by(1);
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let _ = (1..).step_by(0);
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let _ = (1..=2).step_by(0);
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let x = 0..1;
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let _ = x.step_by(0);
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// No error, not a range.
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let y = NotARange;
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y.step_by(0);
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let v1 = vec![1,2,3];
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let v2 = vec![4,5];
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let _x = v1.iter().zip(0..v1.len());
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let _y = v1.iter().zip(0..v2.len()); // No error
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// check const eval
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let _ = v1.iter().step_by(2/3);
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}
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#[allow(unused)]
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fn no_panic_with_fake_range_types() {
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struct Range {
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foo: i32,
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}
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let _ = Range { foo: 0 };
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}
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