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what is the concept of POINTER !!

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what is the concept of POINTER !!

Post  mahant saab !! on Tue Jun 08, 2010 11:56 pm

is there anybody who can tell me how to use pointer and where and whieee ...... lol!
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Re: what is the concept of POINTER !!

Post  Nishchal on Wed Jun 09, 2010 7:19 pm

what:- pointers are the variable that store the address of the other variables

why:- As computer tasks are always memory oriented , so having a tool to lookup and modify memory addresses is always a plus point.

Facts:-
1. All programs run inside memories, all storage takes place at memory, all executable code is placed in memory. So pointers allows you to take controll of the memory and thats what makes pointers a very handy tool in programming.

2. Not many language provide the facility to menupulate memory addresses. But its C's approach that makes pointers the most powerfull feature of C.

3. With all memory at your disposable it becomes very easy to work around problems, creating very efficient programs, deep lvl programs , working with harware, writing powerful code (Virus, antivirus,system componants).


Downside:- Memory Oriented errors are hard to trackdown. "An efficient programmer can avoid any error except pointers".
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question about pointer

Post  vijay thakur on Wed Jun 09, 2010 11:35 pm

why some language doesn't use pointer altough it is gud feature of programming..????? study study study study study study study
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Re: what is the concept of POINTER !!

Post  Nishchal on Fri Jun 11, 2010 10:34 am

vijay thakur wrote:why some language doesn't use pointer altough it is gud feature of programming..????? study study study study study study study

well its not wise to give "Atom bomb" in everyhand. language like Java doesnt allow pointers (To be more precise "dont allow user modificable pointers).
check this out


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