Conversion of whole String to uppercase or lowercase using STL in C++
Given a string, convert the whole string to uppercase or lowercase using STL in C++.
Examples:
For uppercase conversion Input : s = "String" Output : s = "STRING" For lowercase conversion Input : s = "String" Output : s = "string"
Functions used :
transform : Performs a transformation on given array/string.
toupper(int c) : Returns upper case version of character c. If c is already in uppercase, return c itself.
tolower(int c) : Returns lower case version of character c. If c is already in lowercase, return c itself.
// C++ program to convert whole string to// uppercase or lowercase using STL.#include<bits/stdc++.h>using namespace std; int main(){ // su is the string which is converted to uppercase string su = "Jatin Goyal"; // using transform() function and ::toupper in STL transform(su.begin(), su.end(), su.begin(), ::toupper); cout << su << endl; // 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); cout << sl << endl; return 0;} |
Output:
JATIN GOYAL jatin goyal
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