Date: 2018nov16 Language: C++ Q. How should I quote a regular expression in C++ A. Use raw strings! They have been in the language since C++11. In a raw string, escape characters are not processed. For example:

const char *regex = R"[\r\n]+";

Or multiline source code for an embedded language:

const char *code = R" line one line two ";

You can use another delimiter, eg:

const char *saying = R|He said "hello"|;