Eric Blake wrote: > > On HP-UX 11: > > When reading from the pipe: > > c = '#' > > c = 'i' > > ungetc result = '@' > > c = <EOF> > > c = <EOF> > > Bug - C99 requires that ALL streams have at least one byte of ungetc space, > with no limitation on what can go in that buffer. You only invoke > unspecified > behavior when you use ungetc() multiple times in a row.
HP-UX 11 supports ungetc. The <EOF> appears because of the fflush() call and because the input has less than 8192 bytes. But fflush() on a non- seekable input stream is undefined behaviour anyway, so it cannot count as a bug, right? Bruno
