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//@ run-pass
// Issue 23030: Workaround overflowing discriminant
// with explicit assignments.
// See also ui/discrim/discrim-overflow.rs, which shows what
// happens if you leave the OhNo explicit cases out here.
fn f_i8() {
#[repr(i8)]
enum A {
Ok = i8::MAX - 1,
Ok2,
OhNo = i8::MIN,
NotTheEnd = -1,
Zero,
}
let _x = (A::Ok, A::Ok2, A::OhNo);
let z = (A::NotTheEnd, A::Zero).1 as i8;
assert_eq!(z, 0);
}
fn f_u8() {
#[repr(u8)]
enum A {
Ok = u8::MAX - 1,
Ok2,
OhNo = u8::MIN,
}
let _x = (A::Ok, A::Ok2, A::OhNo);
}
fn f_i16() {
#[repr(i16)]
enum A {
Ok = i16::MAX - 1,
Ok2,
OhNo = i16::MIN,
NotTheEnd = -1,
Zero,
}
let _x = (A::Ok, A::Ok2, A::OhNo);
let z = (A::NotTheEnd, A::Zero).1 as i16;
assert_eq!(z, 0);
}
fn f_u16() {
#[repr(u16)]
enum A {
Ok = u16::MAX - 1,
Ok2,
OhNo = u16::MIN,
}
let _x = (A::Ok, A::Ok2, A::OhNo);
}
fn f_i32() {
#[repr(i32)]
enum A {
Ok = i32::MAX - 1,
Ok2,
OhNo = i32::MIN,
NotTheEnd = -1,
Zero,
}
let _x = (A::Ok, A::Ok2, A::OhNo);
let z = (A::NotTheEnd, A::Zero).1 as i32;
assert_eq!(z, 0);
}
fn f_u32() {
#[repr(u32)]
enum A {
Ok = u32::MAX - 1,
Ok2,
OhNo = u32::MIN,
}
let _x = (A::Ok, A::Ok2, A::OhNo);
}
fn f_i64() {
#[repr(i64)]
enum A {
Ok = i64::MAX - 1,
Ok2,
OhNo = i64::MIN,
NotTheEnd = -1,
Zero,
}
let _x = (A::Ok, A::Ok2, A::OhNo);
let z = (A::NotTheEnd, A::Zero).1 as i64;
assert_eq!(z, 0);
}
fn f_u64() {
#[repr(u64)]
enum A {
Ok = u64::MAX - 1,
Ok2,
OhNo = u64::MIN,
}
let _x = (A::Ok, A::Ok2, A::OhNo);
}
fn f_isize() {
#[repr(isize)]
enum A {
Ok = isize::MAX - 1,
Ok2,
OhNo = isize::MIN,
NotTheEnd = -1,
Zero,
}
let _x = (A::Ok, A::Ok2, A::OhNo);
let z = (A::NotTheEnd, A::Zero).1 as isize;
assert_eq!(z, 0);
}
fn f_usize() {
#[repr(usize)]
enum A {
Ok = usize::MAX - 1,
Ok2,
OhNo = usize::MIN,
}
let _x = (A::Ok, A::Ok2, A::OhNo);
}
fn main() {
f_i8(); f_u8();
f_i16(); f_u16();
f_i32(); f_u32();
f_i64(); f_u64();
f_isize(); f_usize();
}
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