Double pointer example

Double pointer example

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Date added: 10.03.2015
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A pointer which points to another pointer is known as double pointer. In this example pr1 is a double pointer. Values from above diagram – Variable num has

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Apr 7, 2011 - When should a double pointer be used in C? Can anyone explain with a example? What I know is that a double pointer is a pointer to a pointer. For example, in the above figure of main memory, say 0x212, 0x214, 0x216, etc are the Double pointer variables are represented with two asterisks (**) As opposed to returning one, you can return a double-pointer. Primarily, you must specify this by preceding the name of the function with two asterisks. Here isI am not clear about creting arrays of arrays using double pointer. can any one I could give an example of a 3d array if you want. Apr 3, 2009

Jun 26, 2014 - I am familiar with basic C pointers. Just wanted to ask what is the ptr_ptr is a pointer to a pointer to an int, and it points at ptr . ptr is a pointer to Our allocstr example can only be used for allocating pointers to char. It would not be you would not be passing a void **, but rather a double **. Another good Pointer to Pointer in C Programming. Declaration : Double Pointer int **ptr2ptr;. Consider the Following Example : int num = 45 , *ptr , **ptr2ptr ; ptr = # A variable that is a pointer to a pointer must be declared as such. This is done by placing an additional asterisk in front of its name. For example, following is the Jan 27, 2012 - Pointer to pointer with an example; Array of pointers with an example So we see that 'p1? is a double pointer (ie pointer to a pointer to a

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