Answer / chandra

to achieve synchronization with the normal languages like c.
for example int a=10,b=30,c;
c = a+b ;
the above operation is possible in c as well as c++.bcos
the variables declared are primitive types.

If u want to do same thing for user defined datatypes, i
can say objects, we have to overload the operators.

For ex:
Assume that u created one class
Class A
and u have created objects
A obj1(10),obj2(30),obj3;

and u want the add 2 objects and result must be stored in
another object.

then u have to overload the operator + for class A.

obj3 = obj1 + obj2 ;

Answer / rekha

Operator overloading means giving additional meaning to
existing operators

Operators are defined to perform some operation on
fundamental types .Operator cannot work with user defined
types like classes and struct.so concept of operator
overloading means allows defining the meaning of operator so
that the can be used for performing operations on user defined
types.

Answer / r.ramakrishna

BY using the operator overloading we can the more than one
operator in single function.

#include <string.h> #include <stdio.h> #include <stdlib.h> #include <conio.h> void select(char *items, int count); int main(void) { char s[255]; printf("Enter a string:"); gets(s); select(s, strlen(s)); printf("The sorted string is: %s.\n", s); getch(); return 0; } void select(char *items, int count) { register int a, b, c; int exchange; char t; for(a = 0; a < count-1; ++a) { exchange = 0; c = a; t = items[ a ]; for(b = a + 1; b < count; ++b) { if(items[ b ] < t) { c = b; t = items[ b ]; exchange = 1; } } if(exchange) { items[ c ] = items[ a ]; items[ a ] = t; } } } design an algorithm for Selection Sort

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