mirror of https://github.com/rust-lang/rust
47 lines
1.1 KiB
Rust
47 lines
1.1 KiB
Rust
//@ check-pass
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// Test various exhaustive matches for `X..`, `..=X` and `..X` ranges.
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fn main() {}
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macro_rules! m {
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($s:expr, $($t:tt)+) => {
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match $s { $($t)+ => {} }
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}
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}
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macro_rules! test_int {
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($s:expr, $min:path, $max:path) => {
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m!($s, $min..);
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m!($s, $min..5 | 5..);
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m!($s, ..5 | 5..);
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m!($s, ..=4 | 5..);
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m!($s, ..=$max);
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m!($s, ..$max | $max);
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m!(($s, true), (..5, true) | (5.., true) | ($min.., false));
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}
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}
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fn unsigned_int() {
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test_int!(0u8, u8::MIN, u8::MAX);
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test_int!(0u16, u16::MIN, u16::MAX);
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test_int!(0u32, u32::MIN, u32::MAX);
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test_int!(0u64, u64::MIN, u64::MAX);
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test_int!(0u128, u128::MIN, u128::MAX);
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}
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fn signed_int() {
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test_int!(0i8, i8::MIN, i8::MAX);
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test_int!(0i16, i16::MIN, i16::MAX);
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test_int!(0i32, i32::MIN, i32::MAX);
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test_int!(0i64, i64::MIN, i64::MAX);
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test_int!(0i128, i128::MIN, i128::MAX);
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}
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fn khar() {
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m!('a', ..=core::char::MAX);
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m!('a', '\u{0}'..);
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m!('a', ..='\u{D7FF}' | '\u{E000}'..);
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m!('a', ..'\u{D7FF}' | '\u{D7FF}' | '\u{E000}'..);
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}
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