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add size check to removal of trailing zeros in number formats

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This commit is contained in:
Thomas Fussell 2016-07-06 18:50:30 +08:00
parent c99d14792f
commit a1688c7e48
1 changed files with 1 additions and 1 deletions
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source/detail/number_formatter.cpp
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@ -1172,7 +1172,7 @@ std::string number_formatter::fill_placeholders(const format_placeholders &p, lo
auto exponent = number != 0 ? static_cast<int>(std::log10(integer_part)) : 0; auto exponent = number != 0 ? static_cast<int>(std::log10(integer_part)) : 0;
auto result = std::to_string(exponent); auto result = std::to_string(exponent);
while (result.back() == '0' || result.size() > (p.num_zeros + p.num_optionals)) while (!result.empty() && (result.back() == '0' || result.size() > (p.num_zeros + p.num_optionals)))
{ {
result.pop_back(); result.pop_back();
} }