help with arrays...

[ISmajor]

i am trying to write a program with two arrays...

my code::

// project5.cpp : main project file.

#include "stdafx.h"

using namespace System;

int main(array<System::String ^> ^args)
{
double hours __gc[] = new double __gc[10];
double charges __gc[] = new double __gc[10];
double total;

do
Console::WriteLine( L"Enter the number of hours parked:" );
hours[i] = Double::Parse( Console::ReadLine() );
if hours[i] > 24
Console::WriteLine( L"Maximum number of hours has been exceeded");
while hours[i] > 24

if hours[i] <= 2
charges[i] = 5
else
charges[i] = ((hours - 2) * .5) + 5;

if hours[i] > 10
charges[i] = 10;

Console::WriteLine( L"Car Number:\tHoursParked:\tAmount Charged:");

for (double i = 1, i <= 10, i++)
Console::WriteLine( L "{0}\t\t{1}\t\t{2}", i.ToString(), hours[i].ToString(), charges[i].ToString() );

for (int i = 0; i<charges-> Length; i++)
total += charges[i];

Console::WriteLine( L"Total Charges from Yesterday: {0}", total.ToString() );

return 0;
}

ERRORS:
.\project5.cpp(9) : error C4980: '__gc' : use of this keyword requires /clrldSyntax command line option
.\project5.cpp(9) : error C2440: 'initializing' : cannot convert from 'double *' to 'double []'
There are no conversions to array types, although there are conversions to references or pointers to arrays
.\project5.cpp(10) : error C2440: 'initializing' : cannot convert from 'double *' to 'double []'
There are no conversions to array types, although there are conversions to references or pointers to arrays
.\project5.cpp(15) : error C2061: syntax error : identifier 'hours'
.\project5.cpp(16) : error C2061: syntax error : identifier 'hours'
.\project5.cpp(18) : error C2061: syntax error : identifier 'hours'
.\project5.cpp(25) : error C2061: syntax error : identifier 'hours'
.\project5.cpp(30) : error C2143: syntax error : missing ',' before '<='
.\project5.cpp(30) : error C2086: 'double i' : redefinition
.\project5.cpp(30) : see declaration of 'i'
.\project5.cpp(33) : error C2227: left of '->Length' must point to class/struct/union/generic type
type is 'double []'
Edit/Delete Message

[Xav]

These are compile errors, which effectively means there are mistakes in the code. Double-check to see if you've made any mistakes.

[WingedPanther]

It looks like __gc is not defined in the current scope.

[v0id]

.\project5.cpp(9) : error C4980: '__gc' : use of this keyword requires /clrldSyntax command line option

Did you try doing like the message suggests? Try compiling with /clrldSyntax.

[Xav]

Try moving __gc to a module-level location, or even public.

[the ftb]

yaaa fur sure there is mistakes in the codes ...... it happend to me once but i fixed it by a programmer who is travelling all over the world finding helpless poeple who cannot solve errors like meee ..... thanx

[Aereshaa]

Okay, first, it looks like you are trying to use "hours" and "charges" as types.

double hours __gc[] = new double __gc[10];
double charges __gc[] = new double __gc[10];

So, it looks like you are defining "__gc" twice, once as the (as far as I know) nonexistant type "array of double hours", and another time as "array of double charges". Later, you refer to these as "hours[]" and "charges[]". Therefore, change your bad declarations to these:

double hours[] = new double [10];
double charges[] = new double [10];

Next, if statements require () around their condition.

if hours[i] <= 2

should be

if(hours[i] <= 2)

do
Console::WriteLine( L"Enter the number of hours parked:" );
hours[i] = Double::Parse( Console::ReadLine() );
if hours[i] > 24
Console::WriteLine( L"Maximum number of hours has been exceeded");
while hours[i] > 24

Here, you tried to make a do/if statement which don't exist (at least in C).

Another error is here:

charges[i] = ((hours - 2) * .5) + 5;

You refer to "hours" which is the address of the first element of the array hours. This should be changed to "hours[0]", "hours[i]", or whatever element of the array hours[] you mean.

All in all, it looks like you're using Perl syntax in C++, so... learn C++!