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Add move operators for addrmap

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A subsequent patch needs to move an addrmap.  This patch adds the
necessary support.  It also changes addrmap_fixed to take a 'const'
addrmap_mutable.  This is fine according to the contract of
addrmap_mutable; but it did require a compensating const_cast in the
implementation.
This commit is contained in:
Tom Tromey
2024-01-14 11:51:38 -07:00
parent 4e417d7bb1
commit 79ddf4a51a
2 changed files with 25 additions and 6 deletions
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19
gdb/addrmap.h
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@@ -85,9 +85,14 @@ struct addrmap_fixed final : public addrmap,
{
public:
addrmap_fixed (struct obstack *obstack, addrmap_mutable *mut);
addrmap_fixed (struct obstack *obstack, const addrmap_mutable *mut);
DISABLE_COPY_AND_ASSIGN (addrmap_fixed);
/* It's fine to use the default move operators, because this addrmap
does not own the storage for the elements. */
addrmap_fixed (addrmap_fixed &&other) = default;
addrmap_fixed &operator= (addrmap_fixed &&) = default;
void relocate (CORE_ADDR offset) override;
private:
@@ -124,6 +129,18 @@ public:
~addrmap_mutable ();
DISABLE_COPY_AND_ASSIGN (addrmap_mutable);
addrmap_mutable (addrmap_mutable &&other)
: tree (other.tree)
{
other.tree = nullptr;
}
addrmap_mutable &operator= (addrmap_mutable &&other)
{
std::swap (tree, other.tree);
return *this;
}
/* In the mutable address map MAP, associate the addresses from START
to END_INCLUSIVE that are currently associated with NULL with OBJ
instead. Addresses mapped to an object other than NULL are left