How to Convert a String to Uppercase or Lowercase in C++?
When you want to convert a string to uppercase or lowercase in C++, there are two methods. The first method is using the ToUpper() and ToLower() functions. You can use these functions on any string variable, but there's a way that allows you to use them much more easily without all the guesswork:
convert all characters in string to uppercase c++
By Anxious Alligator
on Sep 14, 2020
transform(str.begin(), str.end(), str.begin(), ::toupper);
2
c++ char to uppercase
By Thoughtless Toucan
on Dec 30, 2020
char choice;
// it will instantly transform it to upper case without the need
// to convert it to int first
choice = (char)toupper(choice);
1
string to upper c++
By Homeless Hawk
on May 09, 2020
std::string data = "This is a sample string.";
// convert string to upper case
std::for_each(data.begin(), data.end(), [](char & c){
c = ::toupper(c);
});
2
toupper c++
By EZERP
on Oct 11, 2020
int result = toupper(charecterVariable);// return the int that corresponding upper case char
//if there is none then it will return the int for the original input.
//can convert int to char after
char result2 = (char)toupper(variableChar);
1
c++ toupper string
By Filthy Fly
on Feb 16, 2021
// toupper example (C++)
#include <iostream> // std::cout
#include <string> // std::string
#include <locale> // std::locale, std::toupper
int main ()
{
std::locale loc;
std::string str="Test String.\n";
for (std::string::size_type i=0; i<str.length(); ++i)
std::cout << std::toupper(str[i],loc);
return 0;
}
/*
Output:
TEST STRING.
*/
Source: www.cplusplus.com
0
touppercase c++
By Worthy Warrior
on Feb 02, 2021
#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;
}
Source: www.programiz.com
0
In C++, you can use the function left() or right(), which both convert a character to lowercase or uppercase respectively.
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