Using c++ create a library with following functions (prototypes are given along

Question

Using c++ create a library with following functions (prototypes are given along with a description):

- void increasing (double& A, double& B, double& C); //Arranges A, B, and C in increasing order.

- void decreasing (double& A, double& B, double& C); //Arranges A, B, and C in decreasing order.

- void mmm (double& A, double& B, double& C); //Replaces A with the minimum of A, B, and C; replaces B with the average of A, B, and C; replaces C with the maximum of A, B, and C.

Use the library in a program where the user is asked to enter three numbers. The program calls all three functions above and outputs the new values of A, B, and C for each case. Do not just output numbers. Display a message with each result.

Explanation / Answer

HI,

I have added 3 sections

1.Main file containing the main programme(main.cpp)

2.Header file for function declration.(calculate.h)

3.Source file containing the definition of the functions(calculate.cpp)

===============================================================

//main.cpp

#include <iostream>
#include "calculate.h"

using namespace std;
int main()
{
double a,b,c;
cout << "Enter the value of a b and c ";
cin >> a;
cin >> b;
cin >> c;
increasing(a,b,c);
decreasing(a,b,c);
mmm(a,b,c);
return 0;
}

=============================================================================

//save as calculate.cpp

//Src file (calculate.cpp)

#include <iostream>
#include "calculate.h"

using namespace std;

void increasing(double &a, double &b, double &c){


if((a>=b)&&(a>=c)){
if(b>=c){
cout<<" "<<"Ascending order :" <<c<<","<<b<<","<<a;
}
else{
cout<<" "<<"Ascending order :" <<b<<","<<c<<","<<a;
}
}
else if((b>=a)&&(b>=c)){
if(a>=c){
cout<<" "<<"Ascending order :" <<c<<","<<a<<","<<b;
}
else{
cout<<" "<<"Ascending order :" <<a<<","<<c<<","<<b;
}
}
else if((c>=a)&&(c>=b)){
if(a>=b){
cout<<" "<<"Ascending order :" <<b<<","<<a<<","<<c;
}
else{
cout<<" "<<"Ascending order :" <<a<<","<<b<<","<<c;
}
}

  
}
void decreasing(double &a, double &b, double &c){
  

if((a>=b)&&(a>=c)){
if(b>=c){
cout<<" "<<"Discending order :" <<a<<","<<b<<","<<c;
}
else{
cout<<" "<<"Discending order :" <<a<<","<<c<<","<<b;
}
}
else if((b>=a)&&(b>=c)){
if(a>=c){
cout<<" "<<"Discending order :" <<b<<","<<a<<","<<c;
}
else{
cout<<" "<<"Discending order :" <<b<<","<<c<<","<<a;
}
}
else if((c>=a)&&(c>=b)){
if(a>=b){
cout<<" "<<"Discending order :" <<c<<","<<a<<","<<b;
}
else{
cout<<" "<<"Discending order :" <<c<<","<<b<<","<<a;
}
}

  
}

void mmm(double &a, double &b, double &c){
double smallest,largest,avg;
int check=1;
avg=(a+b+c)/3;
if( b<=a && b<=c ){
smallest=b;
check=0;
}

if( c<=a && c<=b && check){
smallest=c;
}
check=1;
if( a>=b && a>=c ){
largest=a;
check=0;
}
if( b>=a && b>=c && check){
largest=b;
}
a=smallest;
b=avg;
c=largest;
cout<<"Thank you a is replaced by min(a,b,c)="<<a<<" ";
cout<<"Thank you b is replaced by avg(a,b,c)="<<b<<" ";
cout<<"Thank you c is replaced by max(a,b,c)="<<c<<" ";
}

============================================================================

//save as calculate.h

//Header file(calculate.h)

void increasing(double &a, double &b, double &c);
void decreasing(double &a, double &b, double &c);
void mmm(double &a, double &b, double &c);

#endif

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