Question

Hello there I am iplementingh a binary tree based on an underlying array.

My project is comprises a set of c++ files and the makefile for generating the compilation.

I am using g++ provided with DEV-C++ 4.9.9.2.

Upon launching compilation I get the following two set of errors.

AlberoBinariov.h: In member function bool AlberoBinariov<T>::figlioSinistroVuoto(typename Alberoa<T, int>::posizioneNodo)':
AlberoBinariov.h:198: error: expected)’ before ‘;’ token
AlberoBinariov.h:198: error: expected primary-expression before ‘)’ token
AlberoBinariov.h:198: error: expected `;’ before ‘)’ token

AlberoBinariov.h: In member function bool AlberoBinariov<T>::figlioDestroVuoto(typename Alberoa<T, int>::posizioneNodo)':
AlberoBinariov.h:204: error: expected)’ before ‘;’ token
AlberoBinariov.h:204: error: expected )' before ';' token
AlberoBinariov.h:204: error: expected primary-expression before ')' token
AlberoBinariov.h:204: error: expected;’ before ‘)’ token

Interested portions of code are provided below:

      template <class T>
      bool AlberoBinariov<T>::figlioSinistroVuoto(posizioneNodo p)
      {
          return (figlioSinistro(p)==(posizioneNodo)P_NULL); //line 198
      }

      template <class T>
      bool AlberoBinariov<T>::figlioDestroVuoto(posizioneNodo p)
      {
           return (figlioDestro(p)==((posizioneNodo)P_NULL)); //line 204
      }

also for your convenince I have included the full source code at the link below.

https://filetea.me/t1sc3e60

Can you please let me know? thanks you in advance for your time. I look forward to hear from you.

Kind regards,
Gerald

PS: P_NULL is a NULL pointer constant declared in the Constants.h file.

Answer 1

You have 3 individual right parenthesis without their corresponding left parenthesis:

return (figlioDestro(p) == ((posizioneNodo)P_NULL)) /* -> */ )));

Change it to this:

return (figlioDestro(p) == ( (posizioneNodo)P_NULL ));