C++ expected `)' before ';' token expected primary-expression before ')' token - c++

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 ));