Declaration of a pointer to pointer (double pointer) in CWhen we declare a pointer variable we need to use dereferencing operator (asterisk character), similarly, to declare pointer to pointer, we need to use two asterisk characters before the identifier (variable name)....
/*function pointer example in c.*/#include <stdio.h>//function: sum, will return sum of two//integer numbersintaddTwoNumbers(intx,inty) {returnx+y; }intmain() {inta, b, sum;//function pointer declarationint(*ptr_sum)(int,int);//function initialisationptr_sum=&addTwoNumbers; a=10...
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Learn: What are the User defined data types in C language like structure, how structure is defined and how their members can be accessed through structure variable and pointer of structure variable. This article will cover a brief on user defined data types in C. C supports various data types...
Pointer Rules in C programming language.Here is the list of c programming pointer rules, these points must be remembered while you are working on pointers to avoid compilation and run time errors.Few rules about C pointers 1) A pointer variable does not store value directly just like int, fl...