convert string to uppercase c++ code example
Example 1: convert whole string to uppercase c++
#include<bits/stdc++.h>
using namespace std;
int main()
{
string s = "Viet Nam";
transform(s.begin(), s.end(), s.begin(), ::toupper);
cout << s << endl;
return 0;
}
Example 2: convert all characters in string to uppercase c++
transform(str.begin(), str.end(), str.begin(), ::toupper);
Example 3: c++ convert lowercase to uppercase
#include <stdio.h>
#include <ctype.h>
int main ()
{
int i=0;
char str[]="Test String.\n";
char c;
while (str[i])
{
c=str[i];
putchar (toupper(c));
i++;
}
return 0;
}
Example 4: string to upper c++
std::string data = "This is a sample string.";
std::for_each(data.begin(), data.end(), [](char & c){
c = ::toupper(c);
});
Example 5: touppercase c++
#include <cctype>
#include <iostream>
#include <cstring>
#include <cstdio>
using namespace std;
int main()
{
char str[] = "John is from USA.";
cout << "The uppercase version of \"" << str << "\" is " << endl;
for (int i=0; i<strlen(str); i++)
putchar(toupper(str[i]));
return 0;
}