/usr/lib/R/site-library/dplyr/include/tools/hash.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 22 23 24 25 26 27 28 29 30 31 | #ifndef dplyr_HASH_H
#define dplyr_HASH_H
#include <boost/functional/hash.hpp>
#ifndef dplyr_hash_map
#if defined(_WIN32)
#define dplyr_hash_map RCPP_UNORDERED_MAP
#else
#include <boost/unordered_map.hpp>
#define dplyr_hash_map boost::unordered_map
#endif
#endif // #ifndef dplyr_hash_map
#ifndef dplyr_hash_set
#if defined(_WIN32)
#define dplyr_hash_set RCPP_UNORDERED_SET
#else
#include <boost/unordered_set.hpp>
#define dplyr_hash_set boost::unordered_set
#endif
#endif // #ifndef dplyr_hash_set
inline std::size_t hash_value(const Rcomplex& cx) {
boost::hash<double> hasher;
size_t seed = hasher(cx.r);
boost::hash_combine(seed, hasher(cx.i));
return seed;
}
#endif
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