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you should be able to influence the value of the Gconvert macro by supplying a value on the ./Configure command line

Excellent!! Following your suggested possible candidates, I found that the configure arg -Dd_Gconvert='sprintf((b),"%.*g",(n),(x))' seems to be doing the trick with perl-5.33.2.
sh Configure -des -Duse64bitall -Dprefix=/home/sisyphus/perl-5.33.2-d +-Uversiononly -Dusedevel -Dd_Gconvert='sprintf((b),"%.*g",(n),(x))' & +& make ..... Everything is up to date. Type 'make test' to run test suite. $ ./perl -I./lib -le 'printf "%.54g\n", 0.3;' 0.299999999999999988897769753748434595763683319091796875 sisyphus@sisyphus5-desktop:~/comp/perl-5.33.2$ ./perl -I./lib -le 'pri +ntf "%.254g\n", 1.7e+251;' 1700000000000000056638039423376108468948472250210191793353461791741809 +721595401553113821670191901996837100770654163405637701161634938299172 +691569638797131996693245937962742921605027934132599151410492365393458 +53734303029546817799537579060533492478640128
I haven't run make test yet. It's getting late, so I'll leave that until the morning.


In reply to Re^2: Influencing the Gconvert macro by syphilis
in thread Influencing the Gconvert macro by syphilis

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