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fixed float serialization (#81 and #80)

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This commit is contained in:
Niels 2015-06-04 19:43:29 +02:00
parent 266399d8e5
commit b8d05f72ea
2 changed files with 2 additions and 10 deletions
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6
src/json.hpp
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@ -2284,11 +2284,7 @@ class basic_json
{ {
// 15 digits of precision allows round-trip IEEE 754 // 15 digits of precision allows round-trip IEEE 754
// string->double->string // string->double->string
using std::snprintf; o << std::setprecision(15) << m_value.number_float;
const auto sz = static_cast<unsigned int>(snprintf(nullptr, 0, "%.15g", m_value.number_float));
std::vector<typename string_t::value_type> buf(sz + 1);
snprintf(&buf[0], buf.size(), "%.15g", m_value.number_float);
o << buf.data();
return; return;
} }

6
src/json.hpp.re2c
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@ -2284,11 +2284,7 @@ class basic_json
{ {
// 15 digits of precision allows round-trip IEEE 754 // 15 digits of precision allows round-trip IEEE 754
// string->double->string // string->double->string
using std::snprintf; o << std::setprecision(15) << m_value.number_float;
const auto sz = static_cast<unsigned int>(snprintf(nullptr, 0, "%.15g", m_value.number_float));
std::vector<typename string_t::value_type> buf(sz + 1);
snprintf(&buf[0], buf.size(), "%.15g", m_value.number_float);
o << buf.data();
return; return;
} }