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