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Merge pull request #225 from RalfJung/comments

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cast -> transmute
This commit is contained in:
Oliver Schneider 2017-06-28 23:08:02 +02:00 • committed by GitHub
commit a589ccb839
1 changed files with 2 additions and 2 deletions
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4
src/eval_context.rs
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@ -1347,7 +1347,7 @@ impl<'a, 'tcx> EvalContext<'a, 'tcx> {
I128 => 16,
Is => self.memory.pointer_size(),
};
// if we cast a ptr to an isize, reading it back into a primval shouldn't panic
// if we transmute a ptr to an isize, reading it back into a primval shouldn't panic
// Due to read_ptr ignoring the sign, we need to jump around some hoops
match self.memory.read_int(ptr, size) {
Err(EvalError::ReadPointerAsBytes) if size == self.memory.pointer_size() => self.memory.read_ptr(ptr)?,
@ -1366,7 +1366,7 @@ impl<'a, 'tcx> EvalContext<'a, 'tcx> {
Us => self.memory.pointer_size(),
};
if size == self.memory.pointer_size() {
// if we cast a ptr to an usize, reading it back into a primval shouldn't panic
// if we transmute a ptr to an usize, reading it back into a primval shouldn't panic
self.memory.read_ptr(ptr)?
} else {
PrimVal::from_u128(self.memory.read_uint(ptr, size)?)