Getting errors while it seems it's all correct?

Jan 23, 2015 at 10:31am
stipan relix (2)
Write your question here.

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#include "stdafx.h"
#include "iostream"
#include <math.h>
using namespace std;


int main()
{
	BEGIN: int solid;
	cout << "Insert a number of the geometric solid you want to calculate the following: V, O, d, D and/or v: " << endl;
	cout << "1. CUBE" << endl;
	cout << "2. CUBOID" << endl;
	cout << "3. PYRAMID" << endl;
	cout << "4. SPHERE" << endl;
	cin >> solid;
	switch (solid)
	{
	case 1:
		float a, V, O, d, D;
		cout << "Insert side a in cm: " << endl;
		cin >> a;
		V = pow(a, 3);
		O = 6 * pow(a, 2);
		d = sqrt(2);
		D = sqrt(3);
		cout << "Volume= " << V << endl;
		cout << "Surface area= " << O << endl;
		cout << "Flat diagonal= " << d << endl;
		cout << "Spatial diagonal: " << D << endl;
		break;
	case 2:
		float a, b, c, V, O, d, D;
		cout << "Insert side a, b and c in cm: " << endl;
		cin >> a >> b >> c;
		V = a*b*c;
		O = 2 * (a*b + b*c + a*c);
		d = sqrt(pow(a, 2) + pow(b, 2) + pow(c, 2));
		D = sqrt(pow(a, 2) + pow(b, 2));
		cout << "Volume= " << V << endl;
		cout << "Surface area= " << O << endl;
		cout << "Flat diagonal= " << d << endl;
		cout << "Spatial diagonal: " << D << endl;
		break;
	case 3:
		float a, b, B, v, V, P, O;
		cout << "Insert side a and b in cm: " << endl;
		cin >> a >> b;
		B = pow(a, 2);
		V = 1 / 3 * B;
		v = a*sqrt(3) / 2;
		P = 4 * 1 / 2 * a*v;
		O = B + P;
		cout << "Volume= " << V << endl;
		cout << "Surface area= " << O << endl;
		cout << "Elevation= " << d << endl;
	case 4:
		float V, O, r, pi;
		cout << "Insert the sphere radius: " << endl;
		cin >> r;
		pi = 3.14159265359;
		V = 4 / 3 * pow(r, 3)*pi;
		O = 4 * pow(r, 2)*pi;
		cout << "Volume= " << V << endl;
		cout << "Surface area= " << O << endl;
		break;
	default:
		goto BEGIN;
	}
	system("pause");
	return 0;
}
Edit & run on cpp.sh


So, the problem is that I really don't know what I did wrong but I still get build errors:

1>------ Build started: Project: tijela, Configuration: Debug Win32 ------
1> tijela.cpp
1>c:\users\stipan\desktop\tijela\tijela\tijela.cpp(27): warning C4244: '=' : conversion from 'double' to 'float', possible loss of data
1>c:\users\stipan\desktop\tijela\tijela\tijela.cpp(28): warning C4244: '=' : conversion from 'double' to 'float', possible loss of data
1>c:\users\stipan\desktop\tijela\tijela\tijela.cpp(35): error C2086: 'float a' : redefinition
1> c:\users\stipan\desktop\tijela\tijela\tijela.cpp(22) : see declaration of 'a'
1>c:\users\stipan\desktop\tijela\tijela\tijela.cpp(35): error C2086: 'float V' : redefinition
1> c:\users\stipan\desktop\tijela\tijela\tijela.cpp(22) : see declaration of 'V'
1>c:\users\stipan\desktop\tijela\tijela\tijela.cpp(35): error C2086: 'float O' : redefinition
1> c:\users\stipan\desktop\tijela\tijela\tijela.cpp(22) : see declaration of 'O'
1>c:\users\stipan\desktop\tijela\tijela\tijela.cpp(35): error C2086: 'float d' : redefinition
1> c:\users\stipan\desktop\tijela\tijela\tijela.cpp(22) : see declaration of 'd'
1>c:\users\stipan\desktop\tijela\tijela\tijela.cpp(35): error C2086: 'float D' : redefinition
1> c:\users\stipan\desktop\tijela\tijela\tijela.cpp(22) : see declaration of 'D'
1>c:\users\stipan\desktop\tijela\tijela\tijela.cpp(48): error C2086: 'float a' : redefinition
1> c:\users\stipan\desktop\tijela\tijela\tijela.cpp(22) : see declaration of 'a'
1>c:\users\stipan\desktop\tijela\tijela\tijela.cpp(48): error C2086: 'float b' : redefinition
1> c:\users\stipan\desktop\tijela\tijela\tijela.cpp(35) : see declaration of 'b'
1>c:\users\stipan\desktop\tijela\tijela\tijela.cpp(48): error C2086: 'float V' : redefinition
1> c:\users\stipan\desktop\tijela\tijela\tijela.cpp(22) : see declaration of 'V'
1>c:\users\stipan\desktop\tijela\tijela\tijela.cpp(48): error C2086: 'float O' : redefinition
1> c:\users\stipan\desktop\tijela\tijela\tijela.cpp(22) : see declaration of 'O'
1>c:\users\stipan\desktop\tijela\tijela\tijela.cpp(53): warning C4244: '=' : conversion from 'double' to 'float', possible loss of data
1>c:\users\stipan\desktop\tijela\tijela\tijela.cpp(60): error C2086: 'float V' : redefinition
1> c:\users\stipan\desktop\tijela\tijela\tijela.cpp(22) : see declaration of 'V'
1>c:\users\stipan\desktop\tijela\tijela\tijela.cpp(60): error C2086: 'float O' : redefinition
1> c:\users\stipan\desktop\tijela\tijela\tijela.cpp(22) : see declaration of 'O'
1>c:\users\stipan\desktop\tijela\tijela\tijela.cpp(63): warning C4305: '=' : truncation from 'double' to 'float'
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========


I'd appreciate any help cause this is for school!
Thank you!
Jan 23, 2015 at 10:40am
mutexe (2372)
Clue about the errors (the first two are warnings):
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float a, V, O, d, D;
float a, b, c, V, O, d, D;
float a, b, B, v, V, P, O;
float V, O, r, pi;


also, do not use goto. Use a loop instead.
Last edited on Jan 23, 2015 at 10:40am
Jan 23, 2015 at 5:06pm
AbstractionAnon (6954)
If mutexe's reply wasn't clear, switch cases do not create new scopes. You're trying to define the same variables in the same scope (main's local variables).
Jan 23, 2015 at 6:26pm
stipan relix (2)
Oh, I understand now, thank you!
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