Rcpp Version 0.12.12
newDatetimeVector.h
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1 // -*- mode: C++; c-indent-level: 4; c-basic-offset: 4; indent-tabs-mode: nil; -*-
2 //
3 // newDatetimeVector.h: Rcpp R/C++ interface class library -- Datetime vector support
4 //
5 // Copyright (C) 2016 Dirk Eddelbuettel
6 //
7 // This file is part of Rcpp.
8 //
9 // Rcpp is free software: you can redistribute it and/or modify it
10 // under the terms of the GNU General Public License as published by
11 // the Free Software Foundation, either version 2 of the License, or
12 // (at your option) any later version.
13 //
14 // Rcpp is distributed in the hope that it will be useful, but
15 // WITHOUT ANY WARRANTY; without even the implied warranty of
16 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 // GNU General Public License for more details.
18 //
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20 // along with Rcpp. If not, see <http://www.gnu.org/licenses/>.
21 
22 #ifndef Rcpp__newDatetimeVector_h
23 #define Rcpp__newDatetimeVector_h
24 
25 #include <RcppCommon.h>
26 
27 namespace Rcpp {
28 
30  public:
31  template <int RTYPE, bool NA, typename VEC>
32  newDatetimeVector(const VectorBase<RTYPE,NA,VEC>& other, const char* tz = "") :
33  NumericVector(other) {
34  setClass(tz);
35  }
36 
37  newDatetimeVector(SEXP vec, const char* tz = "") :
38  NumericVector(vec) {
39  setClass(tz);
40  }
41 
42  newDatetimeVector(int n, const char* tz = "") :
43  NumericVector(n) {
44  setClass(tz);
45  }
46 
47  inline std::vector<Datetime> getDatetimes() const {
48  size_t n = this->size();
49  std::vector<Datetime> v(n);
50  for (size_t i=0; i<n; i++)
51  v[i] = (*this)[i];
52  return v;
53  }
54 
56  if (this != &rhs) {
58  this->attr("tzone") = rhs.attr("tzone");
59  }
60 
61  return *this;
62  }
63 
64  friend inline std::ostream &operator<<(std::ostream & s, const newDatetimeVector d);
65 
66  private:
67 
68  void setClass(const char *tz) {
69  Shield<SEXP> datetimeclass(Rf_allocVector(STRSXP,2));
70  SET_STRING_ELT(datetimeclass, 0, Rf_mkChar("POSIXct"));
71  SET_STRING_ELT(datetimeclass, 1, Rf_mkChar("POSIXt"));
72  Rf_setAttrib(*this, R_ClassSymbol, datetimeclass);
73 
74  if (strcmp(tz, "") != 0) {
75  Shield<SEXP> tzsexp(Rf_mkString(tz));
76  Rf_setAttrib(*this, Rf_install("tzone"), tzsexp);
77  }
78  }
79  };
80 
81  inline std::ostream &operator<<(std::ostream & os, const newDatetimeVector d) {
82  size_t n = d.size();
83  for (size_t i=0; i<n; i++) {
84  os << Datetime(d[i]).format() << " ";
85  if ((i+1) % 4 == 0) os << "\n";
86  }
87  return os;
88  }
89 
90 }
91 
92 #endif
std::string format(const char *fmt="%Y-%m-%d %H:%M:%S") const
Definition: Datetime.h:75
std::vector< Datetime > getDatetimes() const
Vector & operator=(const Vector &rhs)
Definition: Vector.h:69
friend std::ostream & operator<<(std::ostream &s, const newDatetimeVector d)
R_xlen_t size() const
Definition: Vector.h:274
newDatetimeVector(int n, const char *tz="")
void setClass(const char *tz)
newDatetimeVector(SEXP vec, const char *tz="")
newDatetimeVector(const VectorBase< RTYPE, NA, VEC > &other, const char *tz="")
Rcpp API.
Definition: algo.h:28
newDatetimeVector & operator=(const newDatetimeVector &rhs)