[task #16114] Print warning where integer overflow happens

[Siyang He]

Follow-up Comment #15, task #16114 (project gnuastro):

Hi Mohammad, I ran

astarithmetic noised.fits noised.fits + -g1

which took around 0.7 seconds with or without overflow checks.




I also ran

astarithmetic noised.fits noised.fits x noised.fits x -g1

which took about 1 second with or without overflow checks.


So far it looks like the overflow checks aren't having a noticeable effect on
the runtime speed. Good to see!


I have also updated my code to print one overflow message per arithemtic
operation. You can find it at
https://codeberg.org/decaf/gnuastro/src/branch/overflow-check.


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