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having difficulty with enum program;need help before midnight

Arsene (1)
I am recieivng errors and i do not know why, can someone look at my program and explain to me why i get the errors i get?


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  #include<iostream>
#include<string>
#include<cctype>
#include<iomanip>

using namespace std;

enum planetNames{MERCURY, VENUS, EARTH, MOON, MARS, JUPITER, SATURN, URANUS, NEPTUNE, PLUTO};

planetNames findPlanetName(string str);

double calcWeight(planetNames, double);

int main()
{
	double weight;
	double weightOnPlanet;
	string planetName;

	cout << "Planet Names List:\t1. Mercury"
		<< "\t2. Venus\t3. Earth\t4. Moon"
		<< "\t5. Mars\t6. Jupiter\t7. Saturn"
		<< "\t8. Uranus\t9. Neptune"
		<< "\t10. Pluto" << endl;

	cout << "Enter name of the planet:";
	cin >> planetName;
	cout << "enter your weight:";
	cin >> weight;

	weightOnPlanet = calcWeight(findPlanetName(planetName), weight);
	cout << endl << "Weight on planet" << planetName << "is" << weightOnPlanet << "." << endl;

	system("pause");
	return 0;
}

planetNames findPlanetName(string str)
{
	enum planetNames name = EARTH;
	if (str.length() < 4)
	{
		cout << "Invalid planet name..." << endl;
		cout << "Check the spelling Try again" << endl;

		system("pause");
		exit(1);
	}

	switch (toupper(str.at(0)))
	{
	case 'M':
		switch (toupper(str.at(1)))
		{
		case'E':
			name = MERCURY;
			break;
		case'A':
			name = MARS;
			break;
		case'O':
			name = MOON;
			break;
		default:
			cout << "invalid planet name..." << endl << "Check the spelling" << "Try again" << endl;

			system("pause");
			exit(1);
		}
		break;
	case'V':
		name = VENUS;
		break;
	case'E':
		name = EARTH;
		break;
	case'S':
		name = SATURN;
		break;
	case'U':
		name = URANUS;
		break;
	case'N':
		name = NEPTUNE;
		break;
	case'P':
		name = PLUTO;
		break;
	default:
		cout << "Invalid planet name..." << endl;
		cout << "Check the spelling. Try again." << endl;

		system("pause");
		exit(1);
	}

	double calcWeight(planetNames planet, double weight);
	{
		double weightonPlanet = 0;
		switch (planetNames);
		{
		case MERCURY:
			weightonPlanet = weight*0.4155;
			break;
		case VENUS:
			weightonPlanet = weight*0.8975;
			break;
		case EARTH:
			weightonPlanet = weight*1.0;
			break;
		case MOON:
			weightonPlanet = weight*0.166;
			break;
		case MARS:
			weightonPlanet = weight*0.3507;
			break;
		case JUPITER:
			weightonPlanet = weight*2.5374;
			break;
		case SATURN:
			weightonPlanet = weight*1.0677;
			break;
		case URANUS:
			weightonPlanet = weight*0.8947;
			break;
		case NEPTUNE:
			weightonPlanet = weight*1.1794;
			break;
		case PLUTO:
			weightonPlanet = weight*0.899;
			break;
		}

		return weightOnPlanet;
	}
xismn (961)
Line 100 should be switch(planet), not switch(planetNames);.

planet is the identifier, planetNames is an enum type.
Also, ditch the semi-colon (;).

Line 97: Remove the semi-colon.

You're also missing a closing brace (}) for the body of your findPlanetName() function. Put a closing brace on line 96.

On line 99 (or line 100 once you've added the previously mentioned closing brace) you've declared and initialized double weightonPlanet = 0;, but later you try to return weightOnPlanet;. C++ is case-sensitive.

Also, congratulations and thank you for making the effort of using code-tags in your first post. Welcome to the forum!
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