00001 // Filename: interrogate_datafile.I 00002 // Created by: drose (09Aug00) 00003 // 00004 //////////////////////////////////////////////////////////////////// 00005 // 00006 // PANDA 3D SOFTWARE 00007 // Copyright (c) Carnegie Mellon University. All rights reserved. 00008 // 00009 // All use of this software is subject to the terms of the revised BSD 00010 // license. You should have received a copy of this license along 00011 // with this source code in a file named "LICENSE." 00012 // 00013 //////////////////////////////////////////////////////////////////// 00014 00015 00016 //////////////////////////////////////////////////////////////////// 00017 // Function: idf_output_vector 00018 // Description: Writes the indicated vector to the output file. Each 00019 // component is written using its normal ostream output 00020 // operator. 00021 //////////////////////////////////////////////////////////////////// 00022 template<class Element> 00023 void 00024 idf_output_vector(ostream &out, const vector<Element> &vec) { 00025 out << vec.size() << " "; 00026 TYPENAME vector<Element>::const_iterator vi; 00027 for (vi = vec.begin(); vi != vec.end(); ++vi) { 00028 out << (*vi) << " "; 00029 } 00030 } 00031 00032 00033 //////////////////////////////////////////////////////////////////// 00034 // Function: idf_input_vector 00035 // Description: Reads the given vector from the input file, as 00036 // previously written by output_string(). Each 00037 // component is read using its normal istream input 00038 // operator. 00039 //////////////////////////////////////////////////////////////////// 00040 template<class Element> 00041 void 00042 idf_input_vector(istream &in, vector<Element> &vec) { 00043 int length; 00044 in >> length; 00045 if (in.fail()) { 00046 return; 00047 } 00048 00049 vec.clear(); 00050 vec.reserve(length); 00051 while (length > 0) { 00052 Element elem; 00053 in >> elem; 00054 vec.push_back(elem); 00055 length--; 00056 } 00057 }