11. Strings

A string is a sequence of characters. C++ has many methods to analyse or to change a string. C++-strings are the safe replacement for C Strings: const char*. Strings need the header <string>.

A string is very similar to a std::vector

A string feels like a std::vector containing characters. It supports a very similar interface. This means that in addition to the methods of the string class, you have the algorithms of the Standard Template Library to work with the string.

The following code snippet has the std::string name with the value RainerGrimm. I use the STL algorithm std::find_if to get the upper letter and then extract my first and last name into the variables firstName and lastName. The expression name.begin()+1 shows, that strings support random access iterators:

string versus vector

// string.cpp 
...
#include <algorithm>
#include <string>

std::string name{"RainerGrimm"};
auto strIt= std::find_if(name...