Thursday, 1 December 2016

Character literals

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Character literals

Character literals are enclosed in single quotes. If the literal begins with L (uppercase only), it is a wide character literal (e.g., L'x') and should be stored in wchar_t type of variable . Otherwise, it is a narrow character literal (e.g., 'x') and can be stored in a simple variable of char type.
A character literal can be a plain character (e.g., 'x'), an escape sequence (e.g., '\t'), or a universal character (e.g., '\u02C0').
There are certain characters in C++ when they are preceded by a backslash they will have special meaning and they are used to represent like newline (\n) or tab (\t). Here, you have a list of some of such escape sequence codes:
Escape sequenceMeaning
\\\ character
\'' character
\"" character
\?? character
\aAlert or bell
\bBackspace
\fForm feed
\nNewline
\rCarriage return
\tHorizontal tab
\vVertical tab
\oooOctal number of one to three digits
\xhh . . .Hexadecimal number of one or more digits
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