Templated classes in gnucpp4.0.2

Discussion in 'C' started by CMGmadison, Apr 8, 2009.

  1. CMGmadison

    CMGmadison New Member

    Apr 8, 2009
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    I just registered for these forums because there seem to be a number of knowledgeable and helpful c++ people here, and I'm fighting a c++ problem that is beyond my knowledge. I'm a fairly novice coder, and I've been tasked with debugging a code written by my phd advisor a few years ago. He swears it used to compile, but it no longer does. It's a pretty large program, so I'll just include the part that I'm having problems with right now, and I think it has to do with the way the class is templated. As in, it used to be okay to do it this way, but it no longer is with gnucpp4.0.2.

    template<class T>                       // line 215
    void matrix<T>::erase(const int id)     // line 216
    {                                       // line 217
      std::vector<std::vector<T> >::iterator p=mat.begin()+id;  // line 218
      mat.erase(p);                         // line 219
    }                                       // line220
    template<class T>                       // line 222
    void matrix<T>::erase_col(const int id) // line 223
    {                                       // line 224
      for (int i=0;i<mat.size();i++){       // line 225
              std::vector<T>::iterator p=mat[i].begin()+id; // line 226
        if (id<mat[i].size()) mat[i].erase(p); // line 227
      }                                     // line 228
    The error messages are:

    matrix.h: In member function `void matrix<T>::erase(int)':
    matrix.h:218: error: expected `;' before "p"
    matrix.h:219: error: `p' was not declared in this scope
    matrix.h: In member function `void matrix<T>::erase_col(int)':
    matrix.h:226: error: expected `;' before "p"
    matrix.h:227: error: `p' was not declared in this scope
    make: *** [convasp.o] Error 1
    Any thoughts or suggestions would be hugely appreciated. Thanks!

    PS if any of you are denizens of other C++ forums you may notice that I'm posting this in other places too. I don't mean to spam, but this is kind of urgent.

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