/usr/lib/R/site-library/dplyr/include/tools/rlang-export.h is in r-cran-dplyr 0.7.4-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 | #ifndef RLANG_EXPORT_H
#define RLANG_EXPORT_H
#define R_NO_REMAP
#include <Rinternals.h>
#include <Rversion.h>
#include <R_ext/Rdynload.h>
#if (defined(R_VERSION) && R_VERSION < R_Version(3, 4, 0))
typedef union {
void* p;
DL_FUNC fn;
} fn_ptr;
SEXP R_MakeExternalPtrFn(DL_FUNC p, SEXP tag, SEXP prot);
DL_FUNC R_ExternalPtrAddrFn(SEXP s);
#endif
void rlang_register_pointer(const char* ns, const char* ptr_name, DL_FUNC fn);
#endif
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