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/macosx-10.10.1/ruby-106/ruby/ext/bigdecimal/
H A Dbigdecimal.c5672 /* fracf: any positive digit under rounding position? */
5675 int fracf, fracf_1further; local
5722 fracf = (v % (shifter * 10) > 0);
5729 now fracf is whether the digit or any of the remaining digits within v are non-zero
5741 fracf = fracf_1further = 1;
5746 /* now fracf = does any positive digit exist under the rounding position?
5758 if (fracf) ++div;
5767 if (fracf && (VpGetSign(y)>0)) ++div;
5770 if (fracf && (VpGetSign(y)<0)) ++div;

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