> generates the same output and same assembly
> for both casts. can anyone explain what this pragma
> is supposed to do?
it changes the rounding mode from the standard
truncate to integer (expensive on a 387) to
round to nearest (incorrect but cheap).
#pragma fpround on
print("%d\n", (int)d);
#pragma fpround 0
print("%d\n", (int)d);
your examples compiles to the same code in both
cases because the rounding mode is only consulted
during code generation, which happens at the
function's final }. you'd need to write two different
functions to demonstrate the difference.
russ
