string to upper c++
#include <iostream>
#include <cctype>
int main() {
std::string inputString;
// Input
std::cout << "Enter a string: ";
std::getline(std::cin, inputString);
// Convert each character to uppercase
for (char &c : inputString) {
c = std::toupper(c);
}
// Output
std::cout << "Uppercase string: " << inputString << std::endl;
return 0;
}