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Dimesh 12Jul2010 15:19

About Arrays !!
 
What is the difference Between those types of initializing An array called "IntegerArray" With 5 element :
Code:

    int IntegerArray[5] = {0};
    int IntegerArray[5] = {0,0,0,0,0};
    int IntegerArray[5] = {10,20,30,40,50};
    int IntegerArray[]  = {10,20,30,40,50};

Please i need an obvious explanation for each line as i am confused.....

Thanks for reading...............

shabbir 12Jul2010 15:29

Re: About Arrays !!
 
Code:

    int IntegerArray[5] = {0};
Declares array of integers with each initialized to 0. Basically short form of second one.
Code:

    int IntegerArray[5] = {0,0,0,0,0};
Declares array of integers with each initialized to 0.
Code:

    int IntegerArray[5] = {10,20,30,40,50};
Declares array of integers with each initialized to respective values.
Code:

    int IntegerArray[]  = {10,20,30,40,50};
Declares array of integers with each initialized to respective values. This is again same as above and one more way to write it.

Dimesh 12Jul2010 16:02

Re: About Arrays !!
 
Thanks shabbir, that is helpful ....

Dimesh 12Jul2010 16:04

Re: About Arrays !!
 
Good explanation more than others ....!

shabbir 12Jul2010 20:42

Re: About Arrays !!
 
The pleasure is all mine.

LordN3mrod 8Sep2010 02:17

Re: About Arrays !!
 
By all means the explanation of shabbir was excellent, indeed. Just a little complementation from me:
when you write
int a[n] = {a[1], a[2] ..., a[t]}
then,
if n is greater than t, then the remaining values are set to 0. t is greater than n, this is a compile error.
if you don't specify n, then n = t;
sorry for a bit dry explanation, but I'm sure it won't cause trouble :)


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