Chapter 12, Problem 1RQE

A(n)___________is represented in memory as an array of characters with a null terminator.

Program Description Answer

“C-string” is a series of characters that are stored in successive memory locations and it is terminated by a null character.

Explanation of Solution

C-string:

C-string is a series of characters that are stored in successive memory locations and it is terminated by a null character.

The ASCII code for the null character is 0, but in C++ and many programming languages it is represented by ‘\0’.

• In a program, c-strings can be used in three forms. They are:
  • Programmer-defined arrays of character
  • Hard-coded string literals
  • Pointers to character
• C++ language also provides some library functions to work with C-strings. Some of them are:
  • “strlen” function – This function helps to find the length of the string.
  • “strcat” function – By using this function, two or more than two strings can be concatenated.
  • “strcpy” function – This function is used to copy the string from one variable to another variable.
  • “strcmp” function – This function helps to compare strings.
• In order to use C-string library functions, the header file “#include<cstring>” must be used.