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The concept of a string in C is difficult, because a string is a collection of characters stored in memory terminated by a NULL string i.e. \0. Let us consider the string Hello. This occupies 6 addresses in memory i.e.
4000 H 4001 e 4002 l 4003 l 4004 o 4005 \0 Therefore in order to declare a string in C we really declare a pointer to the string and C will stop reading in the string when it reaches the NULL terminator. Consider the program which prints your name
#include stdio.h void main() { char prompt; /*Author : Mr James Mc Carren Company: Staffordshire University Date: 26th August 2012 Version 1.0 Function : String storing illegally Modifications: none*/ char *name; name = "James Mc carren"; printf("your name is %s \n\r",name); printf("Press and key to exit \n\r"); scanf("\n%c",&prompt); } Care should be taken with Loading up pointers as C needs to allocate space to any variable. The statement name = "James Mc carren"; allocates 16 spaces. Consider the following program #include void main() { char prompt; /*Author : Mr James Mc Carren Company: Staffordshire University Date: 26th August 2012 Version 1.0 Function : String storing illegally Modifications: none*/ char *name; scanf("%s",name); printf("your name is %s \n\r",name); printf("Press and key to exit \n\r"); scanf("\n%c",&prompt); }
Manipulators There are several classes in the iostream.h header file. One of them is ios class. This class stores the format state. For example, some bits explain the base in w
Within software languages we have the ability to store information in mail boxes i.e. memory slots which are given names to represent the box. The naming rules are governed by the
Make a list of functions that are standard in C++. You must include each of the following for each function: Name of function Its parameters Data type it returns
It is a pointer accessible only in the member functions of a struct, class or union type. It points to the object for which the member function is called. Static member functions d
Use of random function: int main(void) { int i,j; for(j=0;j { // randomize(); for(i=0;i printf("%d\n", ran
redirection in c++
The goto statement This statement can be used to branch to another statement of the program. This is rarely used as it violates the principle of structured programming. Though
Different implementations of OOP Object-oriented programming is not mainly concerned with the details of the program operation. Instead, it deals with the overall design of the
Call by Reference Passing variables(parameters) to a function in C can be done in two ways - pass by value, also called as call by value and pass by address or also known as ca
Define a structure of student class: Write a program to define a structure of student record in C. class student { char name[20]; int roll_no; int marks[2];
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