100 lines
1.8 KiB
Rust
100 lines
1.8 KiB
Rust
// Issue 23030: Detect overflowing discriminant
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// See also run-pass/discrim-explicit-23030.rs where the suggested
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// workaround is tested.
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fn f_i8() {
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#[repr(i8)]
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enum A {
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Ok = i8::MAX - 1,
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Ok2,
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OhNo, //~ ERROR enum discriminant overflowed [E0370]
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}
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let x = A::Ok;
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}
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fn f_u8() {
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#[repr(u8)]
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enum A {
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Ok = u8::MAX - 1,
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Ok2,
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OhNo, //~ ERROR enum discriminant overflowed [E0370]
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}
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let x = A::Ok;
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}
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fn f_i16() {
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#[repr(i16)]
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enum A {
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Ok = i16::MAX - 1,
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Ok2,
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OhNo, //~ ERROR enum discriminant overflowed [E0370]
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}
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let x = A::Ok;
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}
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fn f_u16() {
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#[repr(u16)]
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enum A {
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Ok = u16::MAX - 1,
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Ok2,
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OhNo, //~ ERROR enum discriminant overflowed [E0370]
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//~| overflowed on value after 65535
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}
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let x = A::Ok;
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}
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fn f_i32() {
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#[repr(i32)]
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enum A {
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Ok = i32::MAX - 1,
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Ok2,
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OhNo, //~ ERROR enum discriminant overflowed [E0370]
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//~| overflowed on value after 2147483647
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}
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let x = A::Ok;
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}
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fn f_u32() {
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#[repr(u32)]
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enum A {
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Ok = u32::MAX - 1,
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Ok2,
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OhNo, //~ ERROR enum discriminant overflowed [E0370]
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//~| overflowed on value after 4294967295
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}
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let x = A::Ok;
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}
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fn f_i64() {
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#[repr(i64)]
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enum A {
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Ok = i64::MAX - 1,
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Ok2,
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OhNo, //~ ERROR enum discriminant overflowed [E0370]
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//~| overflowed on value after 9223372036854775807
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}
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let x = A::Ok;
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}
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fn f_u64() {
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#[repr(u64)]
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enum A {
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Ok = u64::MAX - 1,
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Ok2,
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OhNo, //~ ERROR enum discriminant overflowed [E0370]
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//~| overflowed on value after 18446744073709551615
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}
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let x = A::Ok;
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}
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fn main() { }
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