Chapter 7 Exercise Set 0: Chapter Review¶
Write the code from the Containers for strings section in a file named
hello_strings.cpp
, compile it, and run it.Write a function that takes a
string
as an argument and that outputs the letters backwards, all on one line.Encapsualte the code from the Looping and counting section in a function named
count_letters
, and generalize it so that it accepts both the string and the letter as arguments.Rewrite the
count_letters
function from the previous exercise so that instead of traversing the string, it uses thefind
function.Fix the code in String concatenation so that “Ouack” and “Quack” are spelled correctly.
Use the
cctype
library write functionsstring_to_upper
andstring_to_lower
that take a singlestring
as an argument and return a string consisting of all upper or lower case letters.