Hi,
This patch adds constructors of array_slice that are required to
create them from non-const (heap or auto) vectors or from GC vectors.
The use of non-const array_slices is somewhat limited, as creating one
from const vec<some_type> still leads to array_slice<const some_type>,
so I eventually also only resorted to having read-only array_slices.
But I do need the constructor from the gc vector.
Bootstrapped and tested along code that actually uses it on
x86_64-linux. OK for trunk?
Thanks,
Martin
gcc/ChangeLog:
2022-08-08 Martin Jambor <mjam...@suse.cz>
* vec.h (array_slice): Add constructors for non-const reference to
heap vector and pointers to heap vectors.
---
gcc/vec.h | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/gcc/vec.h b/gcc/vec.h
index eed075addc9..b0477e1044c 100644
--- a/gcc/vec.h
+++ b/gcc/vec.h
@@ -2264,6 +2264,18 @@ public:
array_slice (const vec<OtherT> &v)
: m_base (v.address ()), m_size (v.length ()) {}
+ template<typename OtherT>
+ array_slice (vec<OtherT> &v)
+ : m_base (v.address ()), m_size (v.length ()) {}
+
+ template<typename OtherT>
+ array_slice (const vec<OtherT, va_gc> *v)
+ : m_base (v ? v->address () : nullptr), m_size (v ? v->length () : 0) {}
+
+ template<typename OtherT>
+ array_slice (vec<OtherT, va_gc> *v)
+ : m_base (v ? v->address () : nullptr), m_size (v ? v->length () : 0) {}
+
iterator begin () { return m_base; }
iterator end () { return m_base + m_size; }
--
2.37.2
