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lang-c
gawk -M -v PREC="quad" -v OFMT="%.0f" 'BEGIN{ a = 11111111111111111111; print a, a/22; }'OFMTis%.6g, so I get5.05051e+17forgawk -M -vPREC=quad 'BEGIN{ a = 11111111111111111111; print a/22; }'. As for just using-M,gawk -M 'BEGIN{ a = 11111111111111111111; print a/22; }'gives me the wrong answer505050505050505024. I'm not sure if that's a bug or if it automatically converts the number to a float when it's no longer an integer (a/11is an integer, and it gives the right answer with just-M).ROUNDMODEfor setting the rounding mode if "round to even" isn't what you wantgnotf. (2) If the result of a division require a decimal (some non-zero digit after the dot) then that result is internally converted to a float with the precision given by PREC. Any integer gets as many digits (before the dot) as it may need. Trygawk -M -vPREC=20 -vOFMT='%.30f' 'BEGIN{ a=22^22; b=101; print a,a/22,b/10; }'The first two numbers are integers and are exact, the last is as imprecise as given byPREC=20. Change it toPREC=200to see the change on the last number only.(4)Yes, rounding could be adjusted.