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Use max_digits10 in dump_float for float->text->float round-trip

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This commit is contained in:
abolz 2018-01-15 21:26:03 +01:00
parent 810f81bbd9
commit 9b9919d460
2 changed files with 4 additions and 4 deletions
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4
develop/detail/serializer.hpp
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@ -665,8 +665,8 @@ class serializer
void dump_float(number_float_t x, std::false_type /*is_ieee_single_or_double*/)
{
// get number of digits for a text -> float -> text round-trip
static constexpr auto d = std::numeric_limits<number_float_t>::digits10;
// get number of digits for a float -> text -> float round-trip
static constexpr auto d = std::numeric_limits<number_float_t>::max_digits10;
// the actual conversion
std::ptrdiff_t len = snprintf(number_buffer.data(), number_buffer.size(), "%.*g", d, x);

4
src/json.hpp
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@ -8136,8 +8136,8 @@ class serializer
void dump_float(number_float_t x, std::false_type /*is_ieee_single_or_double*/)
{
// get number of digits for a text -> float -> text round-trip
static constexpr auto d = std::numeric_limits<number_float_t>::digits10;
// get number of digits for a float -> text -> float round-trip
static constexpr auto d = std::numeric_limits<number_float_t>::max_digits10;
// the actual conversion
std::ptrdiff_t len = snprintf(number_buffer.data(), number_buffer.size(), "%.*g", d, x);