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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:13 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:13 +0000 |
commit | 218caa410aa38c29984be31a5229b9fa717560ee (patch) | |
tree | c54bd55eeb6e4c508940a30e94c0032fbd45d677 /tests/ui/const-generics/min_const_generics/invalid-patterns.rs | |
parent | Releasing progress-linux version 1.67.1+dfsg1-1~progress7.99u1. (diff) | |
download | rustc-218caa410aa38c29984be31a5229b9fa717560ee.tar.xz rustc-218caa410aa38c29984be31a5229b9fa717560ee.zip |
Merging upstream version 1.68.2+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/ui/const-generics/min_const_generics/invalid-patterns.rs')
-rw-r--r-- | tests/ui/const-generics/min_const_generics/invalid-patterns.rs | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/tests/ui/const-generics/min_const_generics/invalid-patterns.rs b/tests/ui/const-generics/min_const_generics/invalid-patterns.rs new file mode 100644 index 000000000..13b2cca2f --- /dev/null +++ b/tests/ui/const-generics/min_const_generics/invalid-patterns.rs @@ -0,0 +1,47 @@ +// stderr-per-bitwidth +use std::mem::transmute; + +fn get_flag<const FlagSet: bool, const ShortName: char>() -> Option<char> { + if FlagSet { + Some(ShortName) + } else { + None + } +} + +union CharRaw { + byte: u8, + character: char, +} + +union BoolRaw { + byte: u8, + boolean: bool, +} + +const char_raw: CharRaw = CharRaw { byte: 0xFF }; +const bool_raw: BoolRaw = BoolRaw { byte: 0x42 }; + +fn main() { + // Test that basic cases don't work + assert!(get_flag::<true, 'c'>().is_some()); + assert!(get_flag::<false, 'x'>().is_none()); + get_flag::<false, 0xFF>(); + //~^ ERROR mismatched types + get_flag::<7, 'c'>(); + //~^ ERROR mismatched types + get_flag::<42, 0x5ad>(); + //~^ ERROR mismatched types + //~| ERROR mismatched types + + + get_flag::<false, { unsafe { char_raw.character } }>(); + //~^ ERROR evaluation of constant value failed + //~| uninitialized + get_flag::<{ unsafe { bool_raw.boolean } }, 'z'>(); + //~^ ERROR it is undefined behavior + get_flag::<{ unsafe { bool_raw.boolean } }, { unsafe { char_raw.character } }>(); + //~^ ERROR evaluation of constant value failed + //~| uninitialized + //~| ERROR it is undefined behavior +} |