Melchior FRANZ wrote:
* Melchior FRANZ -- Friday 02 December 2005 01:43:
But ... we weren't really returning the address of an auto var.
Is it a gcc 4.0.2 (SuSE 10.0) compiler bug? tiny_xdr.cxx contains
this function;
float
XDR_decode_float ( const xdr_data_t & f_Val )
{
float* tmp;
xdr_data_t dummy;
dummy = XDR_decode_int32 (f_Val);
tmp = (float*) &dummy;
return (*tmp);
}
Here you are just returning the contents of a memory location, not the
pointer itself (aka a value). So this should be perfectly safe. My bet
is that the value didn't get decoded properly, but whatever got decoded
incorrectly was returned correctly. I'd check the value if (*tmp)
before it get's returned to see if it looks like what you think it should.
I'll bail out here before I get to the x86 assembler portion of your
message. :-)
Curt.
--
Curtis Olson http://www.flightgear.org/~curt
HumanFIRST Program http://www.humanfirst.umn.edu/
FlightGear Project http://www.flightgear.org
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