On Thu, 30 Jun 2016, Seth Grover wrote:
At +123 I can see that $eax/$ebx contains the correct descriptor, 51345. However, when I print $bx in the debugger, it looks like a negative number, as if it had overflowed a signed 2-byte integer, so the function errors out. This causes the file descriptor to be leaked as well, since no reference to is is retained in the pdir record. I'm a little bit confused at this, as fd is defined as an "integer," which I thought was going to always be a 32-bit signed value on this system.
No, it depends solely on the compiler mode.
However, the FPC documentation tells me that this can be changed based on compiler switches, so maybe somewhere up in one of the other .inc files there is some flag making "integer" behave as a signed 16-byte number? I am inclined just to patch my copy of the FPC rtl and change the definition of fd from "integer" to "longint," but I wanted to get your take on it first.
Best is to use either THandle or cInt, probably the former. The latter may not be defined in the system unit. Nice catch ! Michael. _______________________________________________ fpc-devel maillist - fpc-devel@lists.freepascal.org http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-devel
