escape sequence

[Aashan]

is \q is an escape sequence in C++ ?

[newb16]

I asked google, "c escape sequence" (without quotes). It says that no.

[donbock]

From C: A Reference Manual by Harbison and Steele ...

If the character following the backslash is neither an octal digit, the letter x, nor one of the defined character escape codes, the result is undefined. (In traditional C, the backslash was ignored.) In Standard C, all lowercase letters following the backslash are reserved for future language extensions. Uppercase letters may be used for implementation-specific extensions.

Presumably this applies to C++ too.