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C Programming: String Declaration and Termination

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C Programming: String Declaration and Termination

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Questions and Answers

What is the purpose of the null character in a C string?

To count the number of characters in the string

To indicate the beginning of the string

To store a special character in the string

To indicate the end of the string (correct)

How is a C string different from a character array?

A C string contains only alphabets, while a character array can contain any type of character

A C string is terminated with a unique null character, while a character array is not (correct)

A C string can only store a maximum of 10 characters, while a character array can store any number of characters

A C string can only be initialized with a predefined size, while a character array can be initialized without size

What is the purpose of the size parameter when declaring a C string?

To specify the memory location for the string

To specify the maximum number of characters the string can store (correct)

To count the number of characters in the string

To indicate the starting position of the string

How is a C string initialized when assigning a string literal without size?

By letting the name of the string act as a pointer Signup and view all the answers

Why should one always account for one extra space when assigning a string literal with a predefined size?

To prevent buffer overflow Signup and view all the answers

What is the purpose of the null character ('\0') in a C string?

To differentiate strings from normal character arrays and indicate the termination of a string Signup and view all the answers

How is a C string different from a character array?

C strings have a unique termination character ('\0') while character arrays do not Signup and view all the answers

What is the purpose of the size parameter when declaring a C string?

To specify the number of characters the string can store Signup and view all the answers

How is a C string initialized when assigning a string literal without size?

By using the name of the string as a pointer Signup and view all the answers

Why should one always account for one extra space when assigning a string literal with a predefined size?

To allow space for null character ('\0') at the end of the string Signup and view all the answers

Study Notes

C Strings

A C string is a character array terminated by a null character ('\0'), which indicates the end of the string.

Null Character in C Strings

The null character ('\0') marks the end of a C string, distinguishing it from a character array.
The null character is not visible when printing the string, but it's essential for string manipulation functions to know where the string ends.

C Strings vs Character Arrays

A C string is a character array with a null character ('\0') at the end, whereas a character array is just an array of characters.
A character array can have any data, including binary data, whereas a C string is a specific type of character array used to represent text.

Declaring C Strings

The size parameter when declaring a C string specifies the maximum number of characters the array can hold, including the null character ('\0').
When assigning a string literal without size, the compiler automatically adds the null character ('\0') at the end of the string.

Initializing C Strings

When assigning a string literal with a predefined size, one extra space should be accounted for to accommodate the null character ('\0'), which takes up one character space.
Failure to account for the null character can lead to unexpected behavior or errors in string manipulation functions.

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Description

This quiz covers the basics of declaring and terminating strings in C programming. It explains the syntax for declaring a string as an array of characters and the unique terminator character ' '.