179   char *exponent{eEnd};  in FormatExponent()  local
182     *--exponent = '0' + e - 10 * quotient;  in FormatExponent()
188       overflow = exponent + ed < eEnd;  in FormatExponent()
189       while (exponent > exponent_ + 2 /*E+*/ && exponent + ed > eEnd) {  in FormatExponent()
190         *--exponent = '0';  in FormatExponent()
192     } else if (exponent == eEnd) {  in FormatExponent()
193       *--exponent = '0'; // Ew.dE0 with zero-valued exponent  in FormatExponent()
196     while (exponent + 2 > eEnd) {  in FormatExponent()
197       *--exponent = '0';  in FormatExponent()
200   *--exponent = expo < 0 ? '-' : '+';  in FormatExponent()
201   if (edit.expoDigits || edit.IsListDirected() || exponent + 3 == eEnd) {  in FormatExponent()
202     *--exponent = edit.descriptor == 'D' ? 'D' : 'E'; // not 'G' or 'Q'  in FormatExponent()
204   length = eEnd - exponent;  in FormatExponent()
205   return overflow ? nullptr : exponent;  in FormatExponent()
341     const char *exponent{  in EditEorDOutput()  local
356     if (totalLength > width || !exponent) {  in EditEorDOutput()
375         io_.Emit(exponent, expoLength) && EmitSuffix(edit);  in EditEorDOutput()