WebSep 15, 2015 · - Tue Sep 15, 2015 7:05 am #29064 This isn't a macro, it's just a part of the language (introduced in C++11 standard), known as raw string literal. Raw string literals look like R"token(text)token" the sequence )token must be chosen such that it doesn't appear inside text. In the example you mentioned this token is five equals signs.
User-defined literals (since C++11) - cppreference.com
WebOct 25, 2024 · Output: Character Literal: A. Escape Sequences: There are various special characters that one can use to perform various operations.. 4) String Literals. String literals are similar to that character literals, except that they can store multiple characters and uses a double quote to store the same. WebSep 25, 2014 · Raw string literals should continue to be disallowed for now because of buggy support in VC++ 2013. I have tried using them and they can make code much more readable but they cause VC++ 2013 to get confused about what line number it is on. thiof fish
c++ - What is a raw string? - Stack Overflow
WebOne of L, u8, u, U. delimiter. -. A character sequence made of any source character but parentheses, backslash and spaces (can be empty, and at most 16 characters long) … WebOne of L, u8, u, U. delimiter. -. A character sequence made of any source character but parentheses, backslash and spaces (can be empty, and at most 16 characters long) raw_characters. -. Any character sequence, except that it must not contain the closing sequence )delimiter". 1) Narrow multibyte string literal. Each s-char (originally from non-raw string literals) or r-char (originally from raw string literals) (since C++11) initializes the corresponding element(s) in the string literal object. An s-char or r-char (since C++11)corresponds to more than one element if and only if it is represented by a sequence of more than … See more The null character ('\0', L'\0', char16_t(), etc) is always appended to the string literal: thus, a string literal "Hello" is a const char[6] holding … See more The following behavior-changing defect reports were applied retroactively to previously published C++ standards. See more thioether oxidation mechanism