C++. Define a function RemoveUpper() that takes a string parameter and returns a string. The returned string is the parameter with all characters except the uppercase letters removed.

Question

Define a function RemoveUpper() that takes a string parameter and returns a string. The returned string is the parameter with all characters except the uppercase letters removed.

Ex: RemoveUpper("vbWmVEGrL") returns "vbmr"

Recall string's size() returns the number of characters in a string. Ex: myString.size()

string's at() returns a character at the specified position in the string. Ex: myString.at(3)

isupper() checks if the character passed is uppercase. Ex: isupper('A') returns a non-zero value. isupper('a') returns 0.

Code:

#include <iostream>

#include <string>

#include <cctype>

using namespace std;

/* Your code goes here */

int main() {

string input;

string output;

getline(cin, input);

output = RemoveUpper(input);

cout << output << endl;

return 0;

}

Answer 1

string RemoveUpper(string inputStr)

{

int nStrLen = inputStr.size();

string strReturn;

for (int iLoop=0; iLoop<nStrLen; iLoop++)

{

char curChar = inputStr.at(iLoop);

if (isupper(curChar))

{

continue;

}

else

{

strReturn = strReturn + curChar;

}

}

return(strReturn);

}