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Author can anyone help with some C++ stuff???
SteveW
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27th Aug 03 at 17:04   View User's Profile U2U Member Reply With Quote

OK heres the problem:

What 3 things need to be written to declare an array???

What 2 things need to be written to access an element of an array???

Cheers peeps.

Steve
m-dot
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27th Aug 03 at 17:29   View User's Profile U2U Member Reply With Quote

Declare the array arrays size and the type of elements. All elements must be the same type. Write the element type name, the name of the array variable, then the size enclosed in square brackets ("[]").

int scores[100]; --- array of 100 ints, scores[0] to scores[99]
char name[40]; --- array of 40 chars, name[0] to name[39]


You need three pieces of information to gain access to an array element:

1. The starting address of the array or base address.

2. The array element number or array index you wish to access.

3. The data type size, in bytes, of the data type stored in the array. The size of the data type, along with the index, will be used to calculate an offset into the array from the address of the first element using the following formula:

address of array element = base address + (data type size * array index)

CORSA NUT
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27th Aug 03 at 17:34   View User's Profile U2U Member Reply With Quote

WTF!!!!!
SteveW
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27th Aug 03 at 17:45   View User's Profile U2U Member Reply With Quote

SXI07 - your a life saver, just found all that on a site myself actually. Well done, spot on matey.

Stay online for a bit, need some other bits answered as well

Steve
SteveW
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27th Aug 03 at 17:47   View User's Profile U2U Member Reply With Quote

Here you are try these:

What are the allowable index values for the array MARKS???

What is necessary to initialise all elements of the array to zero???

Cheers buddy

Steve
Adam-D
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27th Aug 03 at 17:48   View User's Profile U2U Member Reply With Quote

fuvkin hate c++
Ben
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27th Aug 03 at 18:03   View User's Profile U2U Member Reply With Quote

what is it
Tim
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27th Aug 03 at 18:04   View Garage View User's Profile U2U Member Reply With Quote

1) A definition of the array MARKS might help answer the question? If you mean the range of values, then it's just ( array size - 1 ) i.e. int marks[100] would have values 0 - 99.

2) To initialise everything to zero, just do

int marks[100] = {0};

[Edited on 27-08-2003 by Tim]
m-dot
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27th Aug 03 at 18:08   View User's Profile U2U Member Reply With Quote

lol, you got me on the first one! but if you want to initialise an array to all zeros, initialise it with single zeros:

char cArray[100]={0};

m-dot
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27th Aug 03 at 18:08   View User's Profile U2U Member Reply With Quote

bastard, tim replied quicker
m-dot
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27th Aug 03 at 18:09   View User's Profile U2U Member Reply With Quote

tim check your mails
neiliosxi
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27th Aug 03 at 18:35   View User's Profile U2U Member Reply With Quote

I had to learn all this at uni, 1st year on electrical engineering degree, its a nightmare if u have never heard of C++!!!
SteveW
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27th Aug 03 at 18:36   View User's Profile U2U Member Reply With Quote

Great, but why would it be necessary to do this??

Steve
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27th Aug 03 at 19:05   View User's Profile U2U Member Reply With Quote

lol sorry, forgot your question: a loop is used to initialise the whole array to zero, thus even if the array size increases, the main loop code still remains the same. All that would change is the constant iSIZE.


Richie
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27th Aug 03 at 19:08   View User's Profile U2U Member Reply With Quote

Steven stop cheating
m-dot
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27th Aug 03 at 19:10   View User's Profile U2U Member Reply With Quote

lol steve are you doing course work or something? right, thats it.. no more help for you
Ian
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27th Aug 03 at 19:15   View Garage View User's Profile U2U Member Reply With Quote

No he's playing with C++ for fun
m-dot
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27th Aug 03 at 19:20   View User's Profile U2U Member Reply With Quote

he might be
SteveW
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27th Aug 03 at 20:22   View User's Profile U2U Member Reply With Quote

you got me

Cant get my head round this shite

Steve
corb
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27th Aug 03 at 20:54   View User's Profile U2U Member Reply With Quote

What is it?
corb
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27th Aug 03 at 20:55   View User's Profile U2U Member Reply With Quote

And have u got any pics of Hels install anywhere?

 
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