[rustc.git] / src / test / ui / consts / const-eval / union-ub.stderr

error[E0080]: it is undefined behavior to use this value
  --> $DIR/union-ub.rs:32:1
   |
LL | const BAD_BOOL: bool = unsafe { DummyUnion { u8: 42 }.bool};
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ type validation failed: encountered 0x2a, but expected a boolean
   |
   = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior.

error[E0080]: it is undefined behavior to use this value
  --> $DIR/union-ub.rs:34:1
   |
LL | const UNINIT_BOOL: bool = unsafe { DummyUnion { unit: () }.bool};
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ type validation failed: encountered uninitialized bytes, but expected a boolean
   |
   = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior.

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0080`.
Commit	Line	Data
a1dfa0c6	1	error[E0080]: it is undefined behavior to use this value
f035d41b	2	--> $DIR/union-ub.rs:32:1
8faf50e0 XL	3	\|
8faf50e0 XL	4	LL \| const BAD_BOOL: bool = unsafe { DummyUnion { u8: 42 }.bool};
f9f354fc	5	\| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ type validation failed: encountered 0x2a, but expected a boolean
8faf50e0	6	\|
e1599b0c	7	= note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior.
8faf50e0	8
f035d41b XL	9	error[E0080]: it is undefined behavior to use this value
	10	--> $DIR/union-ub.rs:34:1
	11	\|
	12	LL \| const UNINIT_BOOL: bool = unsafe { DummyUnion { unit: () }.bool};
	13	\| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ type validation failed: encountered uninitialized bytes, but expected a boolean
	14	\|
	15	= note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior.
	16
	17	error: aborting due to 2 previous errors
8faf50e0 XL	18
8faf50e0 XL	19	For more information about this error, try `rustc --explain E0080`.