adding operator<< for Date(time)Vector

Author: eddelbuettel

ChangeLog

@@ -2,6 +2,8 @@
 
         * inst/include/Rcpp/date_datetime/Date.h (format, operator<<): Added
         * inst/include/Rcpp/date_datetime/Datetime.h (format, operator<<): Ditto
+        * inst/include/Rcpp/date_datetime/newDateVector.h (operator<<): Ditto
+        * inst/include/Rcpp/date_datetime/newDatetimeVector.h (operator<<): Ditto
 
 2016-11-23  Dirk Eddelbuettel  <[email protected]>
 

inst/NEWS.Rd

@@ -8,7 +8,8 @@
     \itemize{
       \item The exception stack message is now correctly demangled on all
       compiler versions (Jim Hester in \ghpr{598})
-      \item Date and Datetime object now have format methods
+      \item Date and Datetime object and vector now have format methods and
+      \code{operator<<} support (PR\ghpr{599})
     }
     \item Changes in Rcpp unit tests
     \itemize{

inst/include/Rcpp/date_datetime/newDateVector.h

@@ -52,13 +52,24 @@ namespace Rcpp {
             return *this;
         }
 
+        friend inline std::ostream &operator<<(std::ostream & s, const newDateVector d);
+
     private:
 
         void setClass() {
             Shield<SEXP> dateclass(Rf_mkString("Date"));
             Rf_setAttrib(*this, R_ClassSymbol, dateclass);
         }
     };
+
+    inline std::ostream &operator<<(std::ostream & os, const newDateVector d) {
+        int n = d.size();
+        for (int i=0; i<n; i++) {
+            os << Date(d[i]).format() << " ";
+            if ((i+1) % 8 == 0) os << "\n";
+        }
+        return os;
+    }
 }
 
 #endif

inst/include/Rcpp/date_datetime/newDatetimeVector.h

@@ -61,6 +61,8 @@ namespace Rcpp {
             return *this;
         }
 
+        friend inline std::ostream &operator<<(std::ostream & s, const newDatetimeVector d);
+
     private:
 
         void setClass(const char *tz) {
@@ -75,6 +77,16 @@ namespace Rcpp {
             }
         }
     };
+
+    inline std::ostream &operator<<(std::ostream & os, const newDatetimeVector d) {
+        int n = d.size();
+        for (int i=0; i<n; i++) {
+            os << Datetime(d[i]).format() << " ";
+            if ((i+1) % 4 == 0) os << "\n";
+        }
+        return os;
+    }
+
 }
 
 #endif