Explain about pointer in C?

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Rajesh N V

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A pointer is variable which can store the address of the another variable.. That is if you created any aaary you want to point the address of that data to other we can use
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M.Tech in Computer Science with 7.5 yrs of Teaching Experience as Asst. Professor

A pointer is a variable which holds an address of another variable. Ordinary variable holds a value of that data type where as the pointer holds the address of another variable of same data type i.e. int x =10. means x is a variable which holds the value 10 and stored at some location 1000. int *ptr...
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A pointer is a variable which holds an address of another variable. Ordinary variable holds a value of that data type where as the pointer holds the address of another variable of same data type i.e. int x =10. means x is a variable which holds the value 10 and stored at some location 1000. int *ptr means ptr is a pointer which can hold the address of another variable of int. let ptr=&x. so ptr will have the address of x i.e. 1000 read less
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Computer Teacher

A pointer is a variable which contains the address in memory of another variable. We can have a pointer to any variable type. The unary or monadic operator & gives the ``address of a variable''. The indirection or dereference operator * gives the ``contents of an object pointed to by a pointer''.
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Tutor

Pointer is a variable which stores the address of some other memory location where the actual data value is.
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In Short: A Pointer is a variable. A pointer stores an "address". An "address" is denoted by a hexadecimal value. An "address" indicates the "memory location" where another variable's data is stored. So it is said that a pointer variable "refers to" another variable's memory location.
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Certified C/C++/Core & Advance Java/Python Trainer

Its a special type of variable which holds the memory address of some other variable. As you would be knowing , every variable you create or declare has got some address in RAM. so if you declared a variable X like int X; //this will allocate 2 bytes of memory in RAM and an address of that allocated...
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Its a special type of variable which holds the memory address of some other variable. As you would be knowing , every variable you create or declare has got some address in RAM. so if you declared a variable X like int X; //this will allocate 2 bytes of memory in RAM and an address of that allocated memory area would be there.also a name X has been associated with that memory area Now you have 2 options to access that memory area: a) we can access that memory area using the name X associates with that memory area b) we can access that memory area using the memory address associated with that memory area. For the second approach , (b) we need to first store the memory address of X in some variable. Now comes the requirement of a POINTER.(As a pointer variable can store the memory address) int * ptr; //declaration of a pointer variable ptr=&X;//assigning the memory address of variable X to pointer variable ptr. Hope this helps. read less
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A pointer is a variable whose value is the address of another variable, i.e., direct address of the memory location. Like any variable or constant, you must declare a pointer before using it to store any variable address. The general form of a pointer variable declaration is ? type *var-name; Here,...
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A pointer is a variable whose value is the address of another variable, i.e., direct address of the memory location. Like any variable or constant, you must declare a pointer before using it to store any variable address. The general form of a pointer variable declaration is ? type *var-name; Here, type is the pointer's base type; it must be a valid C data type and var-name is the name of the pointer variable. The asterisk * used to declare a pointer is the same asterisk used for multiplication. However, in this statement the asterisk is being used to designate a variable as a pointer. read less
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Be Good Do Good

pointer is a variable which stores the address of another variable
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A pointer is a variable which contains the address in memory of another variable. We can have a pointer to any variable type.
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Trainer

A pointer is a variable whose value is the address of another variable, i.e., direct address of the memory location. Like any variable or constant, you must declare a pointer before using it to store any variable address.
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