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Diffstat (limited to '')
-rw-r--r-- | src/test/ui/issues/issue-15523.rs | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/src/test/ui/issues/issue-15523.rs b/src/test/ui/issues/issue-15523.rs new file mode 100644 index 000000000..220a34b9b --- /dev/null +++ b/src/test/ui/issues/issue-15523.rs @@ -0,0 +1,42 @@ +// run-pass +// Issue 15523: derive(PartialOrd) should use the provided +// discriminant values for the derived ordering. +// +// This is checking the basic functionality. + +#[derive(PartialEq, PartialOrd)] +enum E1 { + Pos2 = 2, + Neg1 = -1, + Pos1 = 1, +} + +#[derive(PartialEq, PartialOrd)] +#[repr(u8)] +enum E2 { + Pos2 = 2, + PosMax = !0 as u8, + Pos1 = 1, +} + +#[derive(PartialEq, PartialOrd)] +#[repr(i8)] +enum E3 { + Pos2 = 2, + Neg1 = -1_i8, + Pos1 = 1, +} + +fn main() { + assert!(E1::Pos2 > E1::Pos1); + assert!(E1::Pos1 > E1::Neg1); + assert!(E1::Pos2 > E1::Neg1); + + assert!(E2::Pos2 > E2::Pos1); + assert!(E2::Pos1 < E2::PosMax); + assert!(E2::Pos2 < E2::PosMax); + + assert!(E3::Pos2 > E3::Pos1); + assert!(E3::Pos1 > E3::Neg1); + assert!(E3::Pos2 > E3::Neg1); +} |