isupper()
Prototype: int isupper (int c);
Header File: ctype.h (C) or cctype (C++)
Explanation: Tests to see if the ASCII character associated with the integer c
is an uppercase letter.
#include <iostream>
#include <cctype>
using namespace std;
//Example reads in a character and tests if it uppercase
int main()
{
char x;
cin>>x;
if(isupper(x))
{
cout<<"Uppercase";
}
else
{
cout<<"Not uppercase.";
}
}
Other Functions
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