May 2003
Intermediate to advanced
808 pages
32h 24m
English
#error directive — Issues an error message
#error message
The #error directive tells
the preprocessor to issue an error message and mark the source file as
ill-formed, just as if the programmer made a programming error that
the compiler detected. You can supply any sequence of preprocessor
tokens as the message, and those tokens are
echoed in the error message.
#if !defined(_ _cplusplus) || (_ _cplusplus < 199711L) #error Not a conforming C++ compiler. #endif