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Clamp an overflow to the largest finite value in the add tests #1

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Merged
mborland merged 1 commit into from
Sep 17, 2026
Merged

Clamp an overflow to the largest finite value in the add tests #1

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15 changes: 4 additions & 11 deletions dectest/ddAdd.decTest
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Original file line number Diff line number Diff line change
Expand Up @@ -1233,11 +1233,8 @@ ddadd81509 add .2399 12345678901234.00 -> 12345678901234.23 Inexact Rou
# I think this should be .24 since we are rounding down with a negative number
#ddadd81511 add -.2399 -12345678901234.00 -> -12345678901234.23 Inexact Rounded

# We treat overflow as infinity instead of clamping
#ddadd81520 add 9999999999999999E+369 9E+369 -> 9.999999999999999E+384 Overflow Inexact Rounded
ddadd81520 add 9999999999999999E+369 9E+369 -> inf Overflow Inexact Rounded
#ddadd81521 add -9999999999999999E+369 -9E+369 -> -9.999999999999999E+384 Overflow Inexact Rounded
ddadd81521 add -9999999999999999E+369 -9E+369 -> -inf Overflow Inexact Rounded
ddadd81520 add 9999999999999999E+369 9E+369 -> 9.999999999999999E+384 Overflow Inexact Rounded
ddadd81521 add -9999999999999999E+369 -9E+369 -> -9.999999999999999E+384 Overflow Inexact Rounded

rounding: ceiling
ddadd81600 add .2300 12345678901234.00 -> 12345678901234.23 Rounded
Expand All @@ -1253,9 +1250,7 @@ ddadd81609 add .2399 12345678901234.00 -> 12345678901234.24 Inexact Rou
ddadd81611 add -.2399 -12345678901234.00 -> -12345678901234.23 Inexact Rounded
ddadd81620 add 9999999999999999E+369 9E+369 -> Infinity Overflow Inexact Rounded

# We treat overflow as infinity instead of clamping
#ddadd81621 add -9999999999999999E+369 -9E+369 -> -9.999999999999999E+384 Overflow Inexact Rounded
ddadd81621 add -9999999999999999E+369 -9E+369 -> -inf Overflow Inexact Rounded
ddadd81621 add -9999999999999999E+369 -9E+369 -> -9.999999999999999E+384 Overflow Inexact Rounded

rounding: floor
ddadd81700 add .2300 12345678901234.00 -> 12345678901234.23 Rounded
Expand All @@ -1270,9 +1265,7 @@ ddadd81708 add .2370 12345678901234.00 -> 12345678901234.23 Inexact Rou
ddadd81709 add .2399 12345678901234.00 -> 12345678901234.23 Inexact Rounded
ddadd81711 add -.2399 -12345678901234.00 -> -12345678901234.24 Inexact Rounded

# We treat overflow as infinity instead of clamping
#ddadd81720 add 9999999999999999E+369 9E+369 -> 9.999999999999999E+384 Overflow Inexact Rounded
ddadd81720 add 9999999999999999E+369 9E+369 -> inf Overflow Inexact Rounded
ddadd81720 add 9999999999999999E+369 9E+369 -> 9.999999999999999E+384 Overflow Inexact Rounded

ddadd81721 add -9999999999999999E+369 -9E+369 -> -Infinity Overflow Inexact Rounded

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