using cstring in c++ program isnt running whats wrong?

[cap63]

#include <iostream>
#include <cstring>

using namespace std;

void DisplayAllUpper(char& Days);
void DisplayFirstUpper(char& Days);
void DisplayDaysLength(char& Days, int x);

int main()
{
char Days[5][10]={"monday", "tuesday", "wednesday", "thursday", "friday"};//array of days
int x;

DisplayAllUpper(&Days);
DisplayFirstUpper(&Days);
DisplayDaysLength(&Days, x);



return 0;
}

void DisplayAllUpper(char& Days)
{
//Part a: Change Days to all Uppercase
cout<<"Part A" <<endl;
cout << endl;
for(int i=0; i<5; ++i)
{
strupr(Days[i]);
cout << Days[i]<<endl;
}
}

void DisplayFirstUpper(char& Days)
{
//Part B: Change the first letter of each Day to Uppercase
cout<<"Part B" << endl;
cout << endl;
for(int i = 0; i < 5; ++i)
{
Days[i][0] = toupper(Days[i][0]);
cout<<Days[i]<< endl;
}
}

void DisplayDaysLength(char& Days, int x)
{
//Part C: Show Day of the week and how many letters each day of the week is
cout<< "Part C" <<endl;
cout << endl;
for(int i=0; i<5; ++i)
{
int x= strlen(Days[i][0]);
cout << x << endl;
}
}

[o1vk4iN6]

If your not going to put any effort to explain what you want it to do and what the error is what kind of help do you expect?

Nothing looks wrong!

[josuem11]

I was having problems with strupr while running on Ubuntu and OSX. It would not compile. As soon as I tested my code in Visual Studio it worked.

[Moschops]

strupr isn't ANSI or POSIX; if you use non-standard functions, it's up to you to make sure they exist.