C Programming Strings Overview

<p>char str[] = &quot;Hello&quot;; (C)</p> Signup and view all the answers

<p>It causes a buffer overflow (A)</p> Signup and view all the answers

<p>Use loops to iterate over each character (A)</p> Signup and view all the answers

<p>1 (A)</p> Signup and view all the answers

<p>char * (D)</p> Signup and view all the answers

<p>Only the part before the space is stored. (B)</p> Signup and view all the answers

<p>The array name automatically points to the address of the first element. (C)</p> Signup and view all the answers

<p>size_t (A)</p> Signup and view all the answers

<p>To copy one string to another. (B)</p> Signup and view all the answers

<p>5 (B)</p> Signup and view all the answers

<p>&lt;string.h&gt; (B)</p> Signup and view all the answers

<p>It concatenates two strings. (B)</p> Signup and view all the answers

<p>char strcpy(char* destination, const char* source); (D)</p> Signup and view all the answers

<p>char s[5]; (A)</p> Signup and view all the answers

<p>char c[] = 'hi'; (A)</p> Signup and view all the answers

<p>It will throw a compile-time error. (B)</p> Signup and view all the answers

<p>scanf() (D)</p> Signup and view all the answers

<p>char c = &quot;abc&quot;; (B), char c[] = 'abcd'; (C)</p> Signup and view all the answers

<p>It appends a null character at the end. (A)</p> Signup and view all the answers

<p>Trying char c = &quot;Too many characters&quot;; (C)</p> Signup and view all the answers

<p>Using the assignment operator after declaration. (D)</p> Signup and view all the answers

Copies a string from one variable to another.

Compares two strings character by character.

Returns 0 if strings are equal, non-zero otherwise.

Joins two strings together.

Copying a string without using the strcpy() function.

strcmp() compares strings by comparing individual characters.

Joining strings together.

An array of characters terminated by a null character.

The input string "Dennis Ritchie" contained a space, which caused the scanf function to read only characters until the space. The 's' format specifier in the scanf function stops reading characters when it encounters whitespace.

The variable 'name' is a character array, and in C, array names decay to pointers. Thus, the 'name' in scanf() directly refers to the address of the first element of the array, making '&' unnecessary.

The strlen() function calculates the length of a string, excluding the null terminator ('\0'). It takes a string as input and returns an unsigned integer representing the number of characters in the string.

strlen() function returns a value of type size_t, which is an unsigned integer data type.

The strcpy() function copies a string from one location in memory to another. It takes two arguments: the destination where the string will be copied and the source string to be copied.

The strcpy() function returns a pointer to the destination string, which is the string that was copied.

The strcmp() function compares two strings character by character. It returns 0 if the strings are identical, a negative value if the first string is lexicographically smaller, and a positive value if the first string is lexicographically larger.

The strcat() function concatenates two strings. It appends the second string to the end of the first string.

A sequence of characters in C, ending with a null character '\0'.

Creating a string variable in C using the 'char' data type followed by an array name and size.

Assigning values to a string variable when it is declared, using double quotes or individual characters and a null terminator.

Initializes a string by explicitly defining each character in the array, ensuring the null terminator ('\0') is included to explicitly mark the end of the string.

C doesn't allow direct assignment of string arrays using the '=' operator because they are second-class citizens.

Using the 'scanf()' function to input a sequence of characters from the user, until a whitespace character is encountered.

The null character ('\0') marks the end of a string, helping C functions know where the string ends and prevent unexpected behavior.

Use the 'fgets()' function instead of 'scanf()' to capture the entire string, including whitespace. This function reads the entire string until it encounters a newline character.