C++ string library

Strings in C++ are used to store text or sequences of characters. In C++ strings can be stored in one of the two following ways:

• C-style string (using characters)
• String class

 Each of the above methods is discussed below:

1.

C style string: In C, strings are defined as an array of characters. The difference between a character array and a string is the string is terminated with a special character ‘\0’.

How to take string input in c++ with spaces

How to take string input in c++ with spaces

String functions in c++ with example

Reverse a string in c++

Int to string c++

Length of string in c++

In C, the string is actually represented as an array of characters terminated by a null string. Therefore the size of the character array is always one more than that of the number of characters in the actual string. This thing continues to be supported in C++ too.

The C++ compiler automatically sets “\0” at the end of the string, during the initialization of the array. 

Initializing a String in C++:

1.

String functions in c++ with example pdf

char str[] = "Geeks"; 2. char str[6] = "Geeks"; 3. char str[] = {'G', 'e', 'e', 'k', 's', '\0'}; 4. char str[6] = {'G', 'e', 'e', 'k', 's', '\0'};

Below is the memory representation of the string

how to declare a string array in c