Why doesn't this switch statement work

[Panda187]

I'm trying to have the user input a letter M or F so a specific set of statements will follow according to the letter of choice, I'm also having trouble with loop.

  

// This program will use for loops and 
// switch staements to determine measure
// the body fat of either a male or female

//To Do:
// 1: Ask Name
// 2: Determine Gender
// 3: Input Weight & Measurements
// 4: Calculate Fat Percentages
// 5: Repeat Loop ( Well actuallty first thing to do)


// Step 0: Housekeeping
#include <iostream>
using namespace std;
#include <string>
int main()

{
	// Step 1: Declarations 
	string name1, name2;
	int A1; // [BOTH][Women] (body weight x 0.732) + 8.987 -- [Men] (body weight x 1.082) + 94.42
	int A2; // [BOTH][Women] wrist measurement 9 at (fullest point) -- [Men] wrist measurement x 4.15
	int A3; // [Women ONLY] waist measurment (at navel) x 0.157
	int A4; // [Women ONLY] hip measuremnt  (at fullest point) x 0.434
	int A5; // [Women ONLY] forearm measurement (at fullest point) x 0.434

	int B;  // "B" (stands for body perhaps?) -- [Women] B = A1 + A2 - A3 - A4 + A5 -- [Men] B = A1 - A2

	int BodyFat;            // [BOTH] Body fat = body weight - B 
	int BodyFatPercnetage;  // [BOTH] Body fat percentage = body fat x 100 / body weight 
	char gender;

	// Step 2: For Loop
	int i;					// Declared to be used with for loop
	for (i = 0; i < 5; i++) // for loop

		// Step 3: Start of Loop Statements & User Input
	{
		cout << "Enter the first and last name of the person to measure body fat of." << endl;
		cin >> name1, name2;
		cout << "Enter M or F, if person is male or female." << endl;
		cin >> gender;

		switch (gender)
			case M: cout << "Male";
		break;
			case F: cout << "Female";
                break;

	}
	






	// Step 4: End of For loop & Final Step - Ending Program

	return 0;


}

[Zhuge]

You want to compare to character literals, so you need to surround M and F with single quotes.