Question

How to convert a character to uppercase in C++

Answer 1

#include <iostream>
#include <algorithm>
#include <string> 

using namespace std;

int main()
{
	string ch = "g";

	transform(ch.begin(), ch.end(), ch.begin(), toupper);

	cout << ch << endl;

	return 0;
}


/*
run:

G

*/

 

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Answer 2

#include <iostream>
#include <algorithm>
#include <string> 

using namespace std;

int main()
{
	char ch = 'q';

	ch = toupper(ch);

	cout << ch << endl;

	cout << (char)toupper('g') << endl;

	return 0;
}


/*
run:

Q
G

*/

 

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