c++ - Pointer program not working but syntax should be right? Why is it not compiling? -

this original program , can't seem find program causing fail compile:

#include <iostream>  using namespace std;  int main(){     cout << "how many integers wish enter? ";     int inputnums = 0;     cin >> inputnums;      int* pnumbers = new int [inputnums]; // allocate request integers.     int* pcopy = pnumbers;      cout << "successfully allocated memory for: " << inputnums << " integers." << endl;     (int index = 0; index < inputnums ; ++ index){         cout << "enter number: " << index << ": ";         cin >> *(pnumbers + index);     }      cout << "displaying numbers input: " << endl;     for(int index = 0, int* pcopy = pnumbers; index < inputnums; ++index)         cout << *(pcopy++) << " ";          cout << endl;          // done w/using pointers? release memory.         delete[] pnumbers;          return 0; } 

any ideas of why isn't working? i've looked , tried insert ';' no avail. redid them in original form ideas appreciated!

these error(s):

main.cpp:20:24: error: expected unqualified-id before 'int' main.cpp:20:24: error: expected ';' before 'int' 

your compiler telling error is:

for(int index = 0, int* pcopy = pnumbers; index < inputnums; ++index) 

does not make sense. problem in first part of for loop:

int index = 0, int* pcopy = pnumbers; 

the compiler expects after declaring variable, statement ends , second declaration in new statement (although option exists see later):

int index = 0; int* pcopy = pnumbers; 

this breaks for, expects 1 (simple) statement , 2 expressions. it can fixed writing

int index = 0, *pcopy = pnumbers; 

which variation on may have seen before:

int a, b; 

with more complications added in - initialization , fact * not belong type, variable (which weird , great source of errors).

of course not necessary, have pcopy holds right value anyway...