how to use string comparison in c++
1. There are two functions that allow you to compare strings in C. Both of these functions are included in the library. - 1  This function compares two strings and returns the comparative difference in the number of characters.- 2  This is the same as. , 3  except that it compares the first. 4  characters.dd the comparison function. Now that you have your two strings defined, you can add the comparison function. We are going to use. , so we need to ensure that the number of characters to be measured is set in the function. 6. Use an. statement to perform the comparison.