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/*Case Manipulator
Write a program with three functions: upper, lower, and reverse. The upper function
should accept a pointer to a C-string as an argument. It should step through each
character in the string, converting it to uppercase. The lower function, too, should
accept a pointer to a C-string as an argument. It should step through each character in
the string, converting it to lowercase. Like upper and lower, reverse should also
accept a pointer to a string. As it steps through the string, it should test each character
to determine whether it is upper- or lowercase. If a character is uppercase, it should be
converted to lowercase. Likewise, if a character is lowercase, it should be converted to
uppercase.
Test the functions by asking for a string in function main, then passing it to them in
the following order: reverse, lower, and upper.*/
#include <iostream>
#include <cstring>
#include <cctype>
#include <iomanip>
using namespace std;
int upper(char *);
int lower(char *);
int reverse(char *);
int main()
{
const int size = 40;
char data[size];
int upper_case, lower_case, value = 0;
char *ptr = data;
//String entered to be converted according the the function requirments
cout <<"Enter a string here: " << endl;
getline(cin, str);
//Call uppercase function
upper_case = upper(str);
//Call lowercase function
lower_case = lower(str);
//Reverse value
value = reverse(str);
system ("pause"); //pause program
return(0);
}
//
int upper(char str)
{
int i = 1;
int upper_case;
while (i < str.length())
{
if(islower.at(i))
{
str.at(i+1) = toupper( str.at(i+1));
}
i++;
//Display uppercase value
cout <<"The uppercase values are: " << endl;
cout << str;
}
//Display the data toupper
cout <<"The toupper values are: " << endl;
cout << str << endl;
return upper_case;
}
//This function converts characters entered to lowercase
int lower(char str)
{
int i = 1;
int lower_case;
//convert string to lowercase
while (i < str.length())
{
if(isupper.at(i))
{
str.at(i+1) = tolower(str.at(i+1));
}
i++;
//Display lowercase value
cout <<"The lower case values are: " << endl;
cout << str;
}
return lower_case;
}
//This function reverse the values
int reverse(char str)
{
int value;
int i,j, temp;
for(i=0;i<(j/2);i++)
{
temp = str[i];
str[i] = str[j];
str[j] = temp;
}
j--;
//Display the reversed value
cout << str << endl;
return value;
}
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