MAXDIGS
char buf[max(MAXDIGS, max(MAXFCVT + DMAXEXP, MAXECVT) + 1)];
char buf[MAXDIGS];
p = bp = buf + MAXDIGS;
ptr = buf + MAXDIGS + 1;
bp += MAXDIGS;
bp += MAXDIGS + 1;
char buf[max(MAXDIGS, 1+max(MAXFCVT+MAXEXP, MAXECVT))];
p = bp = buf + MAXDIGS;
p = bp = buf + MAXDIGS;
p = bp = buf + MAXDIGS;