/usr/lib/R/site-library/dplyr/include/dplyr/OrderVisitorImpl.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 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 | #ifndef dplyr_OrderVectorVisitor_Impl_H
#define dplyr_OrderVectorVisitor_Impl_H
#include <dplyr/checks.h>
#include <dplyr/comparisons.h>
#include <dplyr/CharacterVectorOrderer.h>
#include <dplyr/OrderVisitor.h>
#include <dplyr/DataFrameVisitors.h>
#include <dplyr/MatrixColumnVisitor.h>
#include <dplyr/bad.h>
namespace dplyr {
// version used for ascending = true
template <int RTYPE, bool ascending, typename VECTOR>
class OrderVectorVisitorImpl : public OrderVisitor {
typedef comparisons<RTYPE> compare;
public:
/**
* The type of data : int, double, SEXP, Rcomplex
*/
typedef typename Rcpp::traits::storage_type<RTYPE>::type STORAGE;
OrderVectorVisitorImpl(const VECTOR& vec_) : vec(vec_) {}
inline bool equal(int i, int j) const {
return compare::equal_or_both_na(vec[i], vec[j]);
}
inline bool before(int i, int j) const {
return compare::is_less(vec[i], vec[j]);
}
SEXP get() {
return vec;
}
private:
VECTOR vec;
};
// version used for ascending = false
template <int RTYPE, typename VECTOR>
class OrderVectorVisitorImpl<RTYPE, false, VECTOR> : public OrderVisitor {
typedef comparisons<RTYPE> compare;
public:
/**
* The type of data : int, double, SEXP, Rcomplex
*/
typedef typename Rcpp::traits::storage_type<RTYPE>::type STORAGE;
OrderVectorVisitorImpl(const VECTOR& vec_) : vec(vec_) {}
inline bool equal(int i, int j) const {
return compare::equal_or_both_na(vec[i], vec[j]);
}
inline bool before(int i, int j) const {
return compare::is_greater(vec[i], vec[j]);
}
SEXP get() {
return vec;
}
private:
VECTOR vec;
};
template <bool ascending>
class OrderCharacterVectorVisitorImpl : public OrderVisitor {
public:
OrderCharacterVectorVisitorImpl(const CharacterVector& vec_) :
vec(vec_),
orders(CharacterVectorOrderer(vec).get())
{}
inline bool equal(int i, int j) const {
return orders.equal(i, j);
}
inline bool before(int i, int j) const {
return orders.before(i, j);
}
SEXP get() {
return vec;
}
private:
CharacterVector vec;
OrderVectorVisitorImpl<INTSXP, ascending, IntegerVector> orders;
};
// ---------- data frame columns
// ascending = true
template <bool ascending>
class OrderVisitorDataFrame : public OrderVisitor {
public:
OrderVisitorDataFrame(const DataFrame& data_) : data(data_), visitors(data) {}
inline bool equal(int i, int j) const {
return visitors.equal(i, j);
}
inline bool before(int i, int j) const {
return visitors.less(i, j);
}
inline SEXP get() {
return data;
}
private:
DataFrame data;
DataFrameVisitors visitors;
};
template <>
class OrderVisitorDataFrame<false> : public OrderVisitor {
public:
OrderVisitorDataFrame(const DataFrame& data_) : data(data_), visitors(data) {}
inline bool equal(int i, int j) const {
return visitors.equal(i, j);
}
inline bool before(int i, int j) const {
return visitors.greater(i, j);
}
inline SEXP get() {
return data;
}
private:
DataFrame data;
DataFrameVisitors visitors;
};
// ---------- matrix columns
// ascending = true
template <int RTYPE, bool ascending>
class OrderVisitorMatrix : public OrderVisitor {
public:
OrderVisitorMatrix(const Matrix<RTYPE>& data_) : data(data_), visitors(data) {}
inline bool equal(int i, int j) const {
return visitors.equal(i, j);
}
inline bool before(int i, int j) const {
return visitors.less(i, j);
}
inline SEXP get() {
return data;
}
private:
Matrix<RTYPE> data;
MatrixColumnVisitor<RTYPE> visitors;
};
// ascending = false
template <int RTYPE>
class OrderVisitorMatrix<RTYPE, false> : public OrderVisitor {
public:
OrderVisitorMatrix(const Matrix<RTYPE>& data_) : data(data_), visitors(data) {}
inline bool equal(int i, int j) const {
return visitors.equal(i, j);
}
inline bool before(int i, int j) const {
return visitors.greater(i, j);
}
inline SEXP get() {
return data;
}
private:
Matrix<RTYPE> data;
MatrixColumnVisitor<RTYPE> visitors;
};
inline OrderVisitor* order_visitor(SEXP vec, const bool ascending, const int i);
template <bool ascending>
OrderVisitor* order_visitor_asc(SEXP vec);
template <bool ascending>
OrderVisitor* order_visitor_asc_matrix(SEXP vec);
template <bool ascending>
OrderVisitor* order_visitor_asc_vector(SEXP vec);
inline OrderVisitor* order_visitor(SEXP vec, const bool ascending, const int i) {
try {
if (ascending) {
return order_visitor_asc<true>(vec);
}
else {
return order_visitor_asc<false>(vec);
}
}
catch (const Rcpp::exception& e) {
bad_pos_arg(i + 1, e.what());
}
}
template <bool ascending>
inline OrderVisitor* order_visitor_asc(SEXP vec) {
if (Rf_isMatrix(vec)) {
return order_visitor_asc_matrix<ascending>(vec);
}
else {
return order_visitor_asc_vector<ascending>(vec);
}
}
template <bool ascending>
inline OrderVisitor* order_visitor_asc_matrix(SEXP vec) {
switch (check_supported_type(vec)) {
case DPLYR_INTSXP:
return new OrderVisitorMatrix<INTSXP, ascending>(vec);
case DPLYR_REALSXP:
return new OrderVisitorMatrix<REALSXP, ascending>(vec);
case DPLYR_LGLSXP:
return new OrderVisitorMatrix<LGLSXP, ascending>(vec);
case DPLYR_STRSXP:
return new OrderVisitorMatrix<STRSXP, ascending>(vec);
case DPLYR_CPLXSXP:
return new OrderVisitorMatrix<CPLXSXP, ascending>(vec);
case DPLYR_VECSXP:
stop("Matrix can't be a list");
}
stop("Unreachable");
return 0;
}
template <bool ascending>
inline OrderVisitor* order_visitor_asc_vector(SEXP vec) {
switch (TYPEOF(vec)) {
case INTSXP:
return new OrderVectorVisitorImpl<INTSXP, ascending, Vector<INTSXP > >(vec);
case REALSXP:
return new OrderVectorVisitorImpl<REALSXP, ascending, Vector<REALSXP> >(vec);
case LGLSXP:
return new OrderVectorVisitorImpl<LGLSXP, ascending, Vector<LGLSXP > >(vec);
case STRSXP:
return new OrderCharacterVectorVisitorImpl<ascending>(vec);
case CPLXSXP:
return new OrderVectorVisitorImpl<CPLXSXP, ascending, Vector<CPLXSXP > >(vec);
case VECSXP:
{
if (Rf_inherits(vec, "data.frame")) {
return new OrderVisitorDataFrame<ascending>(vec);
}
break;
}
default:
break;
}
stop("is of unsupported type %s", Rf_type2char(TYPEOF(vec)));
}
}
#endif
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