21 lines
447 B
Rust
21 lines
447 B
Rust
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#![warn(clippy::manual_is_power_of_two)]
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fn main() {
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let a = 16_u64;
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let _ = a.count_ones() == 1;
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let _ = a & (a - 1) == 0;
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// Test different orders of expression
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let _ = 1 == a.count_ones();
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let _ = (a - 1) & a == 0;
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let _ = 0 == a & (a - 1);
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let _ = 0 == (a - 1) & a;
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let b = 4_i64;
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// is_power_of_two only works for unsigned integers
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let _ = b.count_ones() == 1;
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let _ = b & (b - 1) == 0;
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}
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