C99 specifies the behaviour of token pasting when either (or both) of the arguments to be pasted expand to an empty sequence of tokens. tcc doesn't seem to implement this:
$ cat p.c #define P(A,B) A ## B bob #define Q(A,B) A ## B+ P(jim,) Q(+,) $ ./tcc -E p.c # 2 "p.c" p.c:3: warning: pasting "jim" and " " does not give a valid preprocessing token jim bob ++ In the P() example, the warning is inappropriate. In the Q() example, the result is wrong. We should get + and + as two separate tokens, not the single token ++. Jay. _______________________________________________ Tinycc-devel mailing list Tinycc-devel@nongnu.org https://lists.nongnu.org/mailman/listinfo/tinycc-devel
