libtsxx [WP]: provide new excpetion class

We need a new exception to indicate an empty time window for cases, where the
interpolator shrinks the time window to fit into the time span of the input
time series.

src/libs/libtsxx/ipo.cc

@@ -4,11 +4,11 @@
  * ----------------------------------------------------------------------------
  * 
  * \author Thomas Forbriger
- * \date 13/07/2005
+ * \date 07/11/2017
  * 
  * interpolation interface (implementation)
  * 
- * Copyright (c) 2005 by Thomas Forbriger (BFO Schiltach) 
+ * Copyright (c) 2005, 2017 by Thomas Forbriger (BFO Schiltach) 
  *
  * ----
  * This program is free software; you can redistribute it and/or modify
@@ -29,11 +29,13 @@
  * REVISIONS and CHANGES 
  *  - 13/07/2005   V1.0   Thomas Forbriger
  *  - 28/07/2005   V1.1   indicate wrong time window by specific exception
+ *  - 07/11/2017   V1.2   
+ *                        -provide new exception to indicate empty time window
  * 
  * ============================================================================
  */
 #define TF_IPO_CC_VERSION \
-  "TF_IPO_CC   V1.1"
+  "TF_IPO_CC   V1.2"
 
 #include <tsxx/ipo.h>
 
@@ -49,6 +51,14 @@ namespace ts {
       : Exception(message, file, line, cond) 
       { }
 
+    // exception constructor
+    ExceptionTimeWindowEmpty::ExceptionTimeWindowEmpty(const char* message, 
+                                                       const char* file,
+                                                       const int& line,
+                                                       const char* cond)
+      : Exception(message, file, line, cond) 
+      { }
+
     //! resample a time series
     ts::TDsfftimeseries resample(const Interpolator& ip,
                                  const libtime::TAbsoluteTime& first,

src/libs/libtsxx/ipo.h

@@ -4,11 +4,11 @@
  * ----------------------------------------------------------------------------
  * 
  * \author Thomas Forbriger
- * \date 13/07/2005
+ * \date 07/11/2017
  * 
  * interpolation interface (prototypes)
  * 
- * Copyright (c) 2005 by Thomas Forbriger (BFO Schiltach) 
+ * Copyright (c) 2005, 2017 by Thomas Forbriger (BFO Schiltach) 
  *
  * ----
  * This program is free software; you can redistribute it and/or modify
@@ -29,6 +29,8 @@
  * REVISIONS and CHANGES 
  *  - 13/07/2005   V1.0   Thomas Forbriger
  *  - 28/07/2005   V1.1   indicate wrong time window by specific exception
+ *  - 07/11/2017   V1.2   
+ *                        -provide new exception to indicate empty time window
  * 
  * ============================================================================
  */
@@ -37,7 +39,7 @@
 #ifndef TF_IPO_H_VERSION
 
 #define TF_IPO_H_VERSION \
-  "TF_IPO_H   V1.1"
+  "TF_IPO_H   V1.2"
 
 #include<tsxx/tsxx.h>
 #include<tsxx/error.h>
@@ -72,6 +74,24 @@ namespace ts {
                                      const char* condition);
       }; // class ExceptionTimeWindowOutside
 
+    /*! \brief Exception in case resulting time window is empty
+     *
+     * This execption indicates that after the time window was shrinked, no
+     * sample from the input time series is available within the defined time
+     * window.
+     *
+     * \ingroup ipo
+     */
+    class ExceptionTimeWindowEmpty:
+      public ts::error::Exception
+      {
+        public:
+          ExceptionTimeWindowEmpty(const char* message, 
+                                   const char* file,
+                                   const int& line,
+                                   const char* condition);
+      }; // class ExceptionTimeWindowEmpty
+
     /*! \brief Interface to time series interpolator
      *
      * \ingroup ipo