id,summary,reporter,owner,description,type,status,priority,milestone,component,version,resolution,keywords,cc 630,undetected overflow in subst(),kroeker@…,somebody,"undetected overflow when substituting a variable in an ideal, while the same overflow is detected for a polynomial. {{{ ring rng = 0,(x,y),dp; ideal I = x^1000000; I = subst (I,x,x^ 1000000); I poly f = x^1000000; f = subst (f,x,x^ 1000000); f; }}} output {{{ . ring rng = 0,(x,y),dp; > ideal I = x^1000000; > . I = subst (I,x,x^ 1000000); > I; I[1]=x3567587328y4294967295 > . poly f = x^1000000; > f = subst (f,x,x^ 1000000); // ** possible OVERFLOW in subst, max exponent is 4294967295, subtituting deg 1000000 by deg 1000000 > f; x3567587328y4294967295 }}}",bug,closed,minor,4-1-0 and higher,dontKnow,4-0-0,fixed,undetected overflow subst ideal,