+eformat: if (expcnt) {
+ *t++ = *++p;
+ if (prec || flags&ALT)
+ *t++ = '.';
+ /* if requires more precision and some integer left */
+ for (; prec && ++p < endp; --prec)
+ *t++ = *p;
+ /*
+ * if done precision and more of the integer component,
+ * round using it; adjust fract so we don't re-round
+ * later.
+ */
+ if (!prec && ++p < endp) {
+ fract = 0;
+ startp = round((double)0, &expcnt, startp,
+ t - 1, *p, signp);
+ }
+ /* adjust expcnt for digit in front of decimal */
+ --expcnt;
+ }
+ /* until first fractional digit, decrement exponent */
+ else if (fract) {
+ /* adjust expcnt for digit in front of decimal */
+ for (expcnt = -1;; --expcnt) {
+ fract = modf(fract * 10, &tmp);
+ if (tmp)
+ break;
+ }
+ *t++ = tochar((int)tmp);
+ if (prec || flags&ALT)
+ *t++ = '.';
+ }
+ else {
+ *t++ = '0';
+ if (prec || flags&ALT)
+ *t++ = '.';
+ }
+ /* if requires more precision and some fraction left */
+ if (fract) {
+ if (prec)
+ do {
+ fract = modf(fract * 10, &tmp);
+ *t++ = tochar((int)tmp);
+ } while (--prec && fract);
+ if (fract)
+ startp = round(fract, &expcnt, startp,
+ t - 1, (char)0, signp);
+ }
+ /* if requires more precision */
+ for (; prec--; *t++ = '0');
+
+ /* unless alternate flag, trim any g/G format trailing 0's */
+ if (gformat && !(flags&ALT)) {
+ while (t > startp && *--t == '0');
+ if (*t == '.')
+ --t;
+ ++t;
+ }
+ t = exponent(t, expcnt, fmtch);