paleolimbot commented on a change in pull request #11919:
URL: https://github.com/apache/arrow/pull/11919#discussion_r766791379
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File path: r/src/py-to-r.cpp
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@@ -21,6 +21,38 @@
#include <arrow/c/bridge.h>
+// [[arrow::export]]
+double external_pointer_addr_double(SEXP external_pointer) {
+ // potentially lossy conversion to double needed for the current
+ // implementation of import/export to Python
+ return reinterpret_cast<uintptr_t>(R_ExternalPtrAddr(external_pointer));
Review comment:
For sure! The motivation of this PR is to provide all the machinery on
the R side that we need to avoid doing it (with a PR on the Python side to
follow).
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