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-rw-r--r--doc/source/reference/arrays.interface.rst6
1 files changed, 4 insertions, 2 deletions
diff --git a/doc/source/reference/arrays.interface.rst b/doc/source/reference/arrays.interface.rst
index e10710719..2f843d2af 100644
--- a/doc/source/reference/arrays.interface.rst
+++ b/doc/source/reference/arrays.interface.rst
@@ -125,8 +125,10 @@ This approach to the interface consists of the object having an
**Default**: ``[('', typestr)]``
**data** (optional)
- A 2-tuple whose first argument is an integer (a long integer
- if necessary) that points to the data-area storing the array
+ A 2-tuple whose first argument is a signed integer (capable of
+ holding a pointer to ``void`` such as the C/C++ type
+ `intptr_t <https://en.cppreference.com/w/cpp/types/integer>`__)
+ that points to the data-area storing the array
contents. This pointer must point to the first element of
data (in other words any offset is always ignored in this
case). The second entry in the tuple is a read-only flag (true