How to convert std::string to lower case?

Question

I want to convert a std::string to lowercase. I am aware of the function tolower(), however in the past I have had issues with this function and it

Answer 1

C++ doesn't have tolower or toupper methods implemented for std::string, but it is available for char. One can easily read each char of string, convert it into required case and put it back into string. A sample code without using any third party library:

#include

int main(){
    std::string str = std::string("How IS The Josh");
    for(char &ch : str){
        ch = std::tolower(ch);
    }
    std::cout<

For character based operation on string : For every character in string