C ++避免反斜杠和双引号转义

Question

I want to know how to avoid backslash and double-quotes from escaping it's expression. Would using R() work with LPCSTR?

Backslash:

WriteKey("\"); //this will escaped accidentally.
WriteKey("/"); //this wouldn't

Same as double-quotes:

WriteKey("""); //this would escape too
WriteKey("'"); //but not this

Note: WriteKey() would need LPCSTR for it's argument

Answer 1

Would using R() work with LPCSTR?

Yes. Raw string literals produce strings with the same types as their non-raw counterparts.

The following lines pass strings with the same content to WriteKey .

WriteKey("\\");   // manual escaping
WriteKey(R"(\)"); // raw string literal

As you can see, it doesn't make much sense to use raw string literals with very short strings.

Raw string literals are supported in Visual Studio starting with VS2013.