Re: Unrecognized escape sequences in string literals

On Aug 11, 2:00 pm, Steven D'Aprano <st...@REMOVE-THIS-> wrote:

test.cpp:1:1: warning: unknown escape sequence '\y'

Isn't that a warning, not a fatal error? So what does temp contain?

My "Annotated C++ Reference Manual" is packed, and surprisingly in
Stroustrup's Third Edition, there is no mention of the issue in the
entire 1,000 pages. But Microsoft to the rescue:

If you want a backslash character to appear within a string,
you must type two backslashes (\\)


The question of what any specific C++ does if you ignore the warning
is irrelevant, as such behavior in C++ is almost *always* undefined.
Hence the warning.