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https://github.com/rust-lang/rust
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37 lines
942 B
Rust
37 lines
942 B
Rust
#![deny(overflowing_literals)]
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#![allow(dead_code)]
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#[repr(i8)]
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enum Ei8 {
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Ai8 = 23,
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Bi8 = -23,
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Ci8 = 223, //~ ERROR literal out of range for `i8`
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}
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#[repr(i16)]
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enum Ei16 {
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Ai16 = 23,
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Bi16 = -22333,
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Ci16 = 55555, //~ ERROR literal out of range for `i16`
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}
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#[repr(i32)]
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enum Ei32 {
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Ai32 = 23,
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Bi32 = -2_000_000_000,
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Ci32 = 3_000_000_000, //~ ERROR literal out of range for `i32`
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}
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#[repr(i64)]
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enum Ei64 {
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Ai64 = 23,
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Bi64 = -9223372036854775808,
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Ci64 = 9223372036854775809, //~ ERROR literal out of range for `i64`
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}
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// u64 currently allows negative numbers, and i64 allows numbers greater than `1<<63`. This is a
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// little counterintuitive, but since the discriminant can store all the bits, and extracting it
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// with a cast requires specifying the signedness, there is no loss of information in those cases.
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// This also applies to isize and usize on 64-bit targets.
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pub fn main() { }
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