Menu with Placeholders

#include <iostream.h>
//#include <fstream.h>
#include <string.h>
#include<cstdlib.h>

using namespace std;


void displayMenu ()
{
cout << "What would you like to do?" << endl;
cout << "New     -Creates a new data file" << endl;
cout << "Open    -Opens a data file" << endl;
cout << "Report  -Read a data file" << endl;
cout << "Quit    -Exits the program" << endl;
}//end menu

void trimTrailingSpace (char cmd1[])
{
    int n;
    bool foundNonSpace;

    n = strlen(cmd1)-1;
    foundNonSpace = false;
    while (!foundNonSpace && n >= 0)
    {
        if (cmd1[n] != ' ')
            foundNonSpace=true;
        else
            n = n --;
    }//end while
    cmd1[n + 1] = '\0';
}//end trailing

void trimLeadingSpace (char cmd1[], char cmd2[])
{
    int i= 0;
    int b=0;
    while (cmd1[i]==' ')
    {
        //cout<<"error";
        i++;//Eat leading white space
    }//end while

    while (cmd1[i] != '\0')
    {

    cmd2[b] = cmd1[i]; //Copy character over
    b++;
    i++;
    }//end while
    //cout<<"errorspace3";
}//end leading

void doNew ()
{
    int a;
    int b;
    cout << "Enter Integer." << endl;
    cin >> a;

    for (b = 1; b <= a; b++)
    {
        cout << b << endl;
    }//end for
}//end new

void doOpen ()
{
    cout << "You have selected Open." << endl;
}//end open

void doReport ()
{
    cout << "You have selected Report." << endl;
}//end report

void doQuit ()
{
    cout << "You have closed the program." << endl;
}//end quit

//--------------------------------------------------------

int main ()
{
char cmd1[65];
char cmd2[65];

char newCommand[] = "new";
char openCommand[] = "open";
char reportCommand[] = "report";
char quitCommand[] = "quit";


displayMenu ();
//cout<<"error1";
cin.getline (cmd1, 65);
//cout<<"error2";
trimLeadingSpace (cmd1, cmd2);

trimTrailingSpace (cmd2);
//cout<<"error3";
//trimLeadingSpace (cmd1, cmd2);


while (stricmp(cmd2, quitCommand)!=0)
{
//cout << "Error While!" << endl; //error check
if (stricmp(strstr(newCommand, cmd2), newCommand) == 0)
    {
    doNew ();
    //return 1;
    }
else if (stricmp(strstr(openCommand, cmd2), openCommand) == 0)
    {
    cout << "Error: Open" << endl;
    doOpen ();
    //return 1;
    }
else if (stricmp(strstr(reportCommand, cmd2), reportCommand) == 0)
    {
    doReport ();
    //return 1;
    }
else
    {
    cout << "You have entered an invalid choice. " << endl;
    }
strcpy(cmd1, "");
displayMenu ();
cin.getline (cmd1, 65);
trimLeadingSpace (cmd1, cmd2);
trimTrailingSpace (cmd2);
}//end while

while (stricmp(strstr(quitCommand, cmd2), quitCommand) == 0)
{
    doQuit();
    return 0;
}//end while
}//end main
//--------------------------------------------------------