Where NOTE May Not Be Used

NOTE() may be used only in the locations described above. For example, the following are invalid:

a = b NOTE(...) + 1;

typedef NOTE(...) struct foo Foo;

for (i=0; NOTE(...) i<10; i++) ...

A note-style annotation is not a statement; NOTE() may not be used inside an if/else/for/while body unless braces are used to make a block. For example, the following causes a syntax error:

if (x) NOTE(...)