Changeset 597 for trunk/se/lu/thep/wenni/lib/c++_tools/gslapi/vector.cc

Timestamp:

Feb 28, 2008, 12:36:46 AM (15 years ago)

Author:

Jari Häkkinen

Message:

Improved memory usage of NNIFileConverter.

File:

• trunk/se/lu/thep/wenni/lib/c++_tools/gslapi/vector.cc (modified) (1 diff)

trunk/se/lu/thep/wenni/lib/c++_tools/gslapi/vector.cc

@@ -165 +165 @@
 
 
+  vector::vector(std::string& line, char sep)
+    throw (utility::IO_error,std::exception)
+    : view_(NULL), const_view_(NULL)
+  {
+    // Empty line
+    if (!line.size())
+      return;
+
+    std::vector<double> v;
+    v.reserve(line.length()/2);
+    std::string element;
+    std::stringstream ss(line);
+    bool ok=true;
+    while(ok) {
+      if(sep=='\0')
+        ok=(ss>>element);
+      else 
+        ok=getline(ss, element, sep);
+      if(!ok)
+        break;
+
+      if(utility::is_double(element)) {
+        v.push_back(atof(element.c_str()));
+      }
+      else if (!element.size() || utility::is_nan(element)) {
+        v.push_back(std::numeric_limits<double>::quiet_NaN());
+      }
+    }
+    if (sep!='\0' && line[line.size()-1]==sep) // add NaN for final separator
+      v.push_back(std::numeric_limits<double>::quiet_NaN());
+
+    // convert the data to a gsl vector
+    v_ = gsl_vector_alloc(v.size());
+    size_t n=0;
+    for (size_t i=0; i<v.size(); i++)
+      gsl_vector_set(v_, n++, v[i]);
+  }
+
+
+
   vector::~vector(void)
   {