CPP

convert whole string to lowercase c++

#include<bits/stdc++.h> 
using namespace std; 
main() { 
    string s = "Viet Nam"; 
    transform(s.begin(), s.end(), s.begin(), ::tolower); //lowercase
    cout << s << endl; 
}

how to change string to lowercase and uperCase in c++

#include <iostream>
#include <algorithm>
#include <string>
using namespace std;

string uperCase(string input){
  transform(input.begin(), input.end(), input.begin(), ::toupper);
  return input;
};

string lowerCase(string input){
  transform(input.begin(), input.end(), input.begin(), ::tolower);
  return input;

};

int main()
{
  string input;

  cout <<"Please enter: ";
  cin >> input;

  cout << "Uper Case: "<<uperCase(input) << endl;
  cout << "Lower Case: "<<lowerCase(input) << endl;

}

how to convert character to lowercase c++

#include <iostream>
#include <string>
#include <boost/algorithm/string.hpp>
#include <iostream>
#include <bits/stdc++.h> 

using namespace std; 

int main() { 
    // way 1
    string s1 = "HeNrY DeUtScH";
    boost::to_lower(s1);
    cout << s1 << endl;

    // way 2
    string s2 = "HeNrY DeUtScH";
    transform(s2.begin(), s2.end(), s2.begin(), ::tolower); //lowercase
    cout << s2 << endl; 

    // way 3
    string s3 = "HeNrY DeUtScH";
    for (int i = 0; i < s3.size(); i++) cout << (char) tolower(s3[i]);
    cout << endl;

    return 0;
}

change to lowercase character c++

char ch = tolower(ch);

how to convert string into lowercase in cpp

  // sl is the string which is converted to lowercase 
    string sl = "Jatin Goyal"; 
  
    // using transform() function and ::tolower in STL 
    transform(sl.begin(), sl.end(), sl.begin(), ::tolower); 

to lowercase c++

#include <iostream>
#include <cctype>
using namespace std;

int main() {

  // convert 'A' to lowercase
  char ch = tolower('A');

  cout << ch;

  return 0;
}

// Output: a

convert characters to lowercase c++

str[i] = tolower(str[i]);