On 9/27/2014 5:58 AM, John Gilmore wrote:
I feel a little like a Zoroastrian intruding into a discussion among
Thomist theologians about whether the archangels in moving from
Samarra to Novara pass through the intervening space, but the whole
notion of imposing decimal-picture constraints upon binary arithmetic
strikes me as absurd.
Now that it is available TRUNC(OPT) has everything to recommend it.
TRUNC(OPT) has been available since VS COBOL II R3 or R4, somewhere
around 2000 or earlier.
-Steve Comstock
It is faster, more accurate, and yields results that are more
perspicuous to any but a diseased imagination.
Any situation in which the twos-complement byte, halfword, and
fullword hardware bounds
-128 <= y < +127
(-2^7 <= y <= +2^7 - 1)
(-2^15 <- h <= +2^15 - 1)
-32768 <= h <= +32767
-2147483648 <= f <= +2147483647
(-2^31 <= f <= +2^31 - 1)
are adjusted implicitly during and following arithmetic operations
results in the generation of more (sometimes much more) and sillier
code. (Explicit operations that use MAX, MIN, or both are available
for performing such operations where, exceptionally, they are
appropriate.)
John Gilmore, Ashland, MA 01721 - USA
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