arrays.cpp

C++ Source code from a tutorial

// This is the main project file for VC++ application project 
// generated using an Application Wizard.

#include "stdafx.h"

#using <mscorlib.dll>
#include <tchar.h>

using namespace System;

__gc class Pizza {
public:
    int inch;
};

// This is the entry point for this application
int _tmain(void)
{
    // Arrays of integers
    Console::WriteLine("===arrays===");
    Int32 intarray[];
    intarray = __gc new Int32[15];
    intarray[1] = 15;
    Console::WriteLine(intarray[1]);
    intarray = __gc new Int32[20];
    for (int x=0; x<20; x++) {
        intarray[x] = x * 2;
    }
    Console::WriteLine(intarray->Length);
    Array::Reverse(intarray);
    for (x=0; x<20; x++) {
        Console::WriteLine(intarray[x]);
    }

    Console::WriteLine("Initialized Int32 array");
    Int32 intarray2[] = {1,2,3,4};
    Int32 intarray3[] = {Int32(1),Int32(2),Int32(3),Int32(4)};
    Console::WriteLine(intarray3[0]);
    Console::WriteLine(intarray3[1]);

    // Arrays of characters
    Char chararray[] = __gc new Char[20];
    chararray[0] = 'a';
    chararray[1] = 'b';
    Console::Write(chararray[0]);
    Console::WriteLine(chararray[1]);

    Char charar2[] = {'S','T'};
    Console::WriteLine(charar2);

    String *charstr = new String(charar2);
    Console::WriteLine(charstr);

    // Array of String
    String *strarray[] = __gc new String *[10];
    strarray[0] = S"Hi";
    strarray[1] = S"There";
    Console::WriteLine(strarray[0]);
    Console::WriteLine(strarray[1]);

    String *strar2[] = {S"Hello", S"All", S"People"};
    Console::WriteLine(strar2[0]);
    Console::WriteLine(strar2[1]);
    Console::WriteLine(strar2[2]);

    // Array of my own managed class
    Pizza *pepperoni[] = __gc new Pizza *[50];
    pepperoni[0] = __gc new Pizza;
    pepperoni[0]->inch = 16;

    // Hold anything...
    Object *oneforall[] = __gc new Object *[50];
    oneforall[0] = S"Wow!";
    oneforall[1] = __gc new Pizza;
    try {
        __try_cast<Pizza *>(oneforall[1])->inch = 12;
    }
    catch(System::InvalidCastException*) {
        Console::WriteLine("Bummer, I couldn't cast!");
    }
    

    // Array of strings, Array of Chars, and Split
    Console::WriteLine("===Split Test===");
    String *breakup = 
        "Dear John, How are you? It's good to talk to you.";
    Char splitters[] = {',' , '?' , ' ' , '.'};
    String *pieces[] = breakup->Split(splitters);
    for (int p=0; p<pieces->Length; p++) {
        Console::WriteLine(pieces[p]);
    }
    Console::WriteLine("===End Split Test===");


    // Multidimensional Arrays
    Int32 flumbaggle[,];
    Int32 zoorabah[,,];
    flumbaggle = __gc new Int32[10,5];
    //Int32 flumbaggle[,] = __gc new Int32[10,5];
    flumbaggle[0,4] = 10;
    flumbaggle[2,4] = 30;

    zoorabah = __gc new Int32[5,6,7];
    zoorabah[4,3,2] = 20;
    return 0;
}