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Fix the sizes of the strings returned by to_static_string() and to_static_wstring() for floating point values

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Gennaro Prota
2025-10-20 16:04:51 +02:00
parent 9c5d69475d
commit 7b0de4ba59
1 changed files with 17 additions and 15 deletions
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32
include/boost/static_string/static_string.hpp
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@@ -6213,9 +6213,11 @@ operator<<(
// Unsigned overloads have a + 1, for the missing digit.
// Floating point overloads have a + 4, for the sign
// of the integral part, sign of the exponent, the 'e',
// and the decimal.
// Floating point overloads have a +7 (for float), + 8
// (for double), and +10 for long double (that accounts
// for the sign of the integral part, the missing digit,
// the decimal point, the sign of the exponent, the 'e'
// and up to two, three or five digits of exponent).
/// Converts `value` to a `static_string`
static_string<std::numeric_limits<int>::digits10 + 2>
@@ -6272,30 +6274,30 @@ to_static_string(unsigned long long value) noexcept
}
/// Converts `value` to a `static_string`
static_string<std::numeric_limits<float>::max_digits10 + 4>
static_string<std::numeric_limits<float>::max_digits10 + 7>
inline
to_static_string(float value) noexcept
{
return detail::to_static_string_float_impl<
std::numeric_limits<float>::max_digits10 + 4>(value);
std::numeric_limits<float>::max_digits10 + 7>(value);
}
/// Converts `value` to a `static_string`
static_string<std::numeric_limits<double>::max_digits10 + 4>
static_string<std::numeric_limits<double>::max_digits10 + 8>
inline
to_static_string(double value) noexcept
{
return detail::to_static_string_float_impl<
std::numeric_limits<double>::max_digits10 + 4>(value);
std::numeric_limits<double>::max_digits10 + 8>(value);
}
/// Converts `value` to a `static_string`
static_string<std::numeric_limits<long double>::max_digits10 + 4>
static_string<std::numeric_limits<long double>::max_digits10 + 10>
inline
to_static_string(long double value) noexcept
{
return detail::to_static_string_float_impl<
std::numeric_limits<long double>::max_digits10 + 4>(value);
std::numeric_limits<long double>::max_digits10 + 10>(value);
}
#ifdef BOOST_STATIC_STRING_HAS_WCHAR
@@ -6354,30 +6356,30 @@ to_static_wstring(unsigned long long value) noexcept
}
/// Converts `value` to a `static_wstring`
static_wstring<std::numeric_limits<float>::max_digits10 + 4>
static_wstring<std::numeric_limits<float>::max_digits10 + 7>
inline
to_static_wstring(float value) noexcept
{
return detail::to_static_wstring_float_impl<
std::numeric_limits<float>::max_digits10 + 4>(value);
std::numeric_limits<float>::max_digits10 + 7>(value);
}
/// Converts `value` to a `static_wstring`
static_wstring<std::numeric_limits<double>::max_digits10 + 4>
static_wstring<std::numeric_limits<double>::max_digits10 + 8>
inline
to_static_wstring(double value) noexcept
{
return detail::to_static_wstring_float_impl<
std::numeric_limits<double>::max_digits10 + 4>(value);
std::numeric_limits<double>::max_digits10 + 8>(value);
}
/// Converts `value` to a `static_wstring`
static_wstring<std::numeric_limits<long double>::max_digits10 + 4>
static_wstring<std::numeric_limits<long double>::max_digits10 + 10>
inline
to_static_wstring(long double value) noexcept
{
return detail::to_static_wstring_float_impl<
std::numeric_limits<long double>::max_digits10 + 4>(value);
std::numeric_limits<long double>::max_digits10 + 10>(value);
}
#endif