Add trailing decimal point if # is specified (#1476)

This commit is contained in:
Victor Zverovich 2019-12-18 12:41:56 -08:00
parent 1b1c70108a
commit 8b41362a0a

View File

@ -1076,10 +1076,9 @@ template <typename Char> class float_writer {
// Insert a decimal point after the first digit and add an exponent.
*it++ = static_cast<Char>(*digits_);
int num_zeros = specs_.precision - num_digits_;
bool trailing_zeros = num_zeros > 0 && specs_.showpoint;
if (num_digits_ > 1 || trailing_zeros) *it++ = decimal_point_;
if (num_digits_ > 1 || specs_.showpoint) *it++ = decimal_point_;
it = copy_str<Char>(digits_ + 1, digits_ + num_digits_, it);
if (trailing_zeros)
if (num_zeros > 0 && specs_.showpoint)
it = std::fill_n(it, num_zeros, static_cast<Char>('0'));
*it++ = static_cast<Char>(specs_.upper ? 'E' : 'e');
return write_exponent<Char>(full_exp - 1, it);
@ -1088,7 +1087,7 @@ template <typename Char> class float_writer {
// 1234e7 -> 12340000000[.0+]
it = copy_str<Char>(digits_, digits_ + num_digits_, it);
it = std::fill_n(it, full_exp - num_digits_, static_cast<Char>('0'));
if (specs_.showpoint) {
if (specs_.showpoint || specs_.precision < 0) {
*it++ = decimal_point_;
int num_zeros = specs_.precision - full_exp;
if (num_zeros <= 0) {
@ -1210,7 +1209,7 @@ FMT_CONSTEXPR float_specs parse_float_type_spec(
switch (specs.type) {
case 0:
result.format = float_format::general;
result.showpoint |= specs.precision != 0;
result.showpoint |= specs.precision > 0;
break;
case 'G':
result.upper = true;