43 lines
797 B
Rust
43 lines
797 B
Rust
// run-pass
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// Issue 15523: derive(PartialOrd) should use the provided
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// discriminant values for the derived ordering.
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//
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// This is checking the basic functionality.
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#[derive(PartialEq, PartialOrd)]
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enum E1 {
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Pos2 = 2,
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Neg1 = -1,
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Pos1 = 1,
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}
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#[derive(PartialEq, PartialOrd)]
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#[repr(u8)]
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enum E2 {
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Pos2 = 2,
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PosMax = !0 as u8,
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Pos1 = 1,
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}
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#[derive(PartialEq, PartialOrd)]
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#[repr(i8)]
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enum E3 {
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Pos2 = 2,
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Neg1 = -1_i8,
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Pos1 = 1,
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}
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fn main() {
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assert!(E1::Pos2 > E1::Pos1);
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assert!(E1::Pos1 > E1::Neg1);
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assert!(E1::Pos2 > E1::Neg1);
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assert!(E2::Pos2 > E2::Pos1);
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assert!(E2::Pos1 < E2::PosMax);
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assert!(E2::Pos2 < E2::PosMax);
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assert!(E3::Pos2 > E3::Pos1);
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assert!(E3::Pos1 > E3::Neg1);
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assert!(E3::Pos2 > E3::Neg1);
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}
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