Changing a capital letter (read from cin) to lower case?

Question

i wanna change the capital cin to lower case for the input , for example if cin>> one one=R it should be r so it convert it automatically

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Answer 1

Try:

#include 

tolower(char)

For a string input, you'll have to convert character by character:

char str[]="ONE TWO\n";
char c;
int i=0;
while (str[i])
{
  c=str[i];
  str[i] = (char) tolower(c);  //I think it return an int, which you need to typecast to a char
  i++;
}