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Date Posted: 7/24/2008 3:05:05 AM  Status: Live
solve it.
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Pointers increase the efficiency of our programs of C++ programs due to security
issues s on these comments and justify your answer,

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Date Posted: 7/24/2008 7:47:51 AM  Status: Live
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Response:
Dear...
 
The context is not specified clearly,i am considering this way to justify. 
Accessing a variable or object through a pointer or reference may be just as fast asaccessing it directly. 
calling a function through a function pointer typically takes a few clock cycles more than calling the function directly. Thus we can say efficiency can be increase .
 
Hope this will help yu

 

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Date Posted: 7/24/2008 9:19:43 AM  Status: Live
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Response:
Dear,

Pointers increase the efficiency of our programs :
Pointers give the memory address(logical) to  programmer  where data is stored. So programmer can directly modify the data so Pointer give more control over where data is stored and how it is initialized. e.g pointers made possible to access hardware directly.
That's make the pointers efficient.
 
Security issue:
Accessing the memory directly make the program insecure. E.g in C/C++ we can access/modify the whole array if we know the base address of array. But it can be dangerous if we cross the limit of array. This will damage other memory locations or will make the core dump. That's make the pointer insecure. But it can be avoided by extra care.
 
 



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