Changeset 11101 for trunk/FACT++/src/Configuration.cc
- Timestamp:
- 06/21/11 23:21:27 (13 years ago)
- File:
-
- 1 edited
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trunk/FACT++/src/Configuration.cc
r11064 r11101 268 268 bool has_option1 = vm.count("option1"); 269 269 bool has_option2 = conf.Has("option2"); 270 271 \endcode 272 273 @section Extensions 274 275 The configuration interpreter can be easily extended to new types, for example: 276 277 \code 278 279 template<class T,class S> // Just for the output 280 std::ostream &operator<<(std::ostream &out, const pair<T,S> &f) 281 { 282 out << f.first << "|" << f.second; 283 return out; 284 } 285 286 template<class T, class S> // Needed by the lexical_cast to convert the option 287 std::istream &operator>>(std::istream &in, pair<T,S> &f) 288 { 289 char c; 290 in >> f.first; 291 in >> c; 292 if (c!=':') 293 return in; 294 in >> f.second; 295 return in; 296 } 297 298 typedef pair<int,int> mytype; // Type definition 299 300 void main(int argc, char **argv) 301 { 302 po::options_description config("Configuration"); 303 config.add_options() 304 ("mytype", var<mytype>(), "my new type") 305 ; 306 307 Configuration conf; 308 conf.AddOptionsCommandline(config); 309 conf.Parse(argc, argv); 310 311 cout << conf.Get<mytype>("mytype") << endl; 312 } 270 313 271 314 \endcode
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