Question: I am getting an error in line 21 of main.cpp stating uninitialized local variable 'temp' used? code: C4700 Can someone please fix the code so
I am getting an error in line 21 of main.cpp stating "uninitialized local variable 'temp' used"? code: C4700
Can someone please fix the code so I can see what I did wrong.
File name: classes.h
#ifndef CLASSES_H
#define CLASSES_H
//Base class
class baseShape
{
protected:
int shapeWidth, shapeHeight;
//Public functions of the class
public:
//Class constructor
baseShape( int checkVariable, int h);
//Function to find the area of the shape
int findArea();
};
//Derived class inherited from base class baseShape
class derivedRectangle: public baseShape
{
public:
//Class constructor
derivedRectangle( int checkVariable, int h);
//derived redefinition of the function
int findArea ();
};
//Other derived class inherited from baseShape
class derivedTriangle: public baseShape{
public:
derivedTriangle( int checkVariable, int h);
//redefinition of findArea function
//function overloadin can be used here
int findArea ();
};
#endif
File Name: classes.cpp
#include "stdafx. h"
#include "classes.h"
#include
using namespace std;
baseShape::baseShape( int checkVariable, int h)
{
shapeWidth = checkVariable;
shapeHeight = h;
}
//Function to find the area of the shape
int baseShape:: findArea()
{
cout << "Base class area :" <
return 3;
}
derivedRectangle::derivedRectangle( int checkVariable, int h):
baseShape(checkVariable, h) { }
//derived redefinition of the function
int derivedRectangle::findArea ()
{
cout << "Derived class findArea :" <
return (shapeWidth * shapeHeight);
}
derivedTriangle :: derivedTriangle( int checkVariable, int h):baseShape(checkVariable, h) { }
//redefinition of findArea function
//function overloadin can be used here
int derivedTriangle::findArea ()
{
cout << "derivedTriangle class findArea :" <
return (shapeWidth * shapeHeight / 2);
}
File Name: Main.cpp
//Include the header fileData
#include "stdafx.h"
#include
#include
#include
#include "classes.h"
#include classes.cpp
//Using the namespaces
using std::setw;
using namespace std;
void userInteract ();
void pointerTest();
void selection();
void switchCase();
void ArrayElements();
void fileOPerations();
//Function to swap using pass by refference
void swapPassByReference(int *first, int *second)
{
int *temp;
*temp = *first;
* first = *second;
*second = *temp;
}
//function uses a pointer
void pointerTest()
{
int intVar;
cout << " Address of intVar variable: ";
cout << &intVar << endl;
}
void userInteract(){
float input1, input2, p;
cout << "Please Input two numbers: ";
cin >> input1 >> input2;
p = input1*input2;
cout << "Product of your inputs is = " << p;
}
//To use selection statements
void selection()
{
int checkVariable = 100;
if( checkVariable < 20 )
{
cout << "checkVariable is less than 20;" << endl;
}
else
{
cout << "checkVariable is not less than 20;" << endl;
}
cout << "value of checkVariable is : " << checkVariable << endl;
}
//To use array
void ArrayElements()
{
//declare the array
int n[10];
//The for loops
for ( int itr = 0; itr < 10; itr++ )
{
n[itr] = itr + 100;
}
cout << "Element" << setw(13) << "Value is" << endl;
for ( int vi = 0; vi < 10; vi++ )
{
cout << setw( 7 )<< vi << setw( 13 ) << n[ vi ] << endl;
}
}
//Switch for select
void switchCase()
{
char mark = 'D';
switch(mark)
{
case 'A' :
cout << "Excellent!" << endl;
break;
case 'B' :
case 'C' :
cout << "Well done" << endl;
break;
case 'D' :
cout << "You passed" << endl;
break;
case 'F' :
cout << "Failed" << endl;
break;
default :
cout << "Invalid mark" << endl;
}
cout << "Your mark is " << mark << endl;
}
//Read the fileData
void fileOPerations() {
char fileData[100];
ofstream filewrite;
filewrite.open("file.txt");
cout << "File write" << endl;
cout << "Please input your name: ";
cin.getline(fileData, 100);
cin.getline(fileData, 100);
filewrite << fileData << endl;
cout << "Please input your age: ";
cin >> fileData;
cin.ignore();
filewrite << fileData << endl;
filewrite.close();
ifstream infile;
infile.open("file.txt");
cout << "File read" << endl;
infile >> fileData;
cout << fileData << endl;
infile >> fileData;
cout << fileData << endl;
infile.close();
}
//main function
int main() {
int a = 100;
int b = 200;
userInteract();
pointerTest();
//swapPassByReference(&a, &b);
cout<<"Now a ="<
selection();
switchCase();
fileOPerations();
//baseShape baseShape(0, 0));
derivedRectangle rec(10,7);
derivedTriangle tri(10,5);
cout<
//baseShape = rec;
//baseShape.findArea();
//baseShape = tri;
cout<
//cout<
return 0;
}
Step by Step Solution
There are 3 Steps involved in it
Get step-by-step solutions from verified subject matter experts
Study Help