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Question :
What is a void pointer?
Category C Interview Questions
Rating (4.3) By 3 users
Added on 10/22/2004
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Answers:

A void pointer is a C convention for ?a raw address.? The compiler has no idea what type of object a void Pointer ?really points to.? If you write

int *ip;

ip points to an int. If you write

void *p;

p doesn?t point to a void!

In C and C++, any time you need a void pointer, you can use another pointer type. For example, if you have a char*, you can pass it to a function that expects a void*. You don?t even need to cast it. In C (but not in C++), you can use a void* any time you need any kind of pointer, without casting. (In C++, you need to cast it).

A void pointer is used for working with raw memory or for passing a pointer to an unspecified type.
Some C code operates on raw memory. When C was first invented, character pointers (char *) were used for that. Then people started getting confused about when a character pointer was a string, when it was a character array, and when it was raw memory.



we can use any data type.



 Posted by: priya    

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void * is a generic pointer .Suppose we don't know the pointer type exactly then we can use a void pointer and , can be assinged to this.

int *p;
void *a;
a=p;



 Posted by: kala    

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