How Do C Escape Sequences Represent Special Characters in String Literals?

Escape Sequences in C String Literals

C provides escape sequences to represent special characters within string literals. The escape character, (backslash), is prefixed to specific characters to denote their literal interpretation.

Control Characters:

• a Alert (bell)
• b Backspace
• t Horizontal tab
• n Newline (line feed)
• v Vertical tab
• f Form feed
• r Carriage return
• e Escape (non-standard GCC extension)

Punctuation Characters:

• `" Quoted double character
• ' Apostrophe
• ? Question mark (used to avoid trigraphs)
• \ Backslash

Numeric Character References:

• up to 3 octal digits
• x any number of hex digits
• u 4 hex digits (Unicode BMP, C 11 onwards)
• U 8 hex digits (Unicode astral planes, C 11 onwards)

Example:

To create a string containing a null character (

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