I have a comment that ends with backslash. Something like
...
// use \
..
Clang(++) warned me, that this is multi-line comment
warning: multi-line // comment [-Wcomment]
// use \
^
So I try add some whitespace at the end, but didn't help. Can I escape backslash somehow?
The foundation of the issue is the definition of a line continuation.
When a line ends with a backslash-newline combination or <backslash><whitespace><newline> combination, the compiler appends the next line of text to the present line of text. This can be demonstrated with macros:
#define ME {\
cout << "me\n" \
}
The above will be treated as the single line:
#define ME {cout << "me\n"}
The compiler is complaining because your "//" comment extends to the next line because the '\' continuation character.
Solution:
Put other characters after the '\'.
Examples:
'\'
\ ending character