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Merge upstream commits and resolve conflicts

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This commit is contained in:
Trevor Welsby
2016-01-25 02:01:01 +10:00
parent 4d6985d4e2 8b6e0dc02d
commit 421affd06e
5 changed files with 276 additions and 81 deletions
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148
src/json.hpp.re2c
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@ -43,7 +43,9 @@ Class @ref nlohmann::basic_json is a good entry point for the documentation.
#include <cassert>
#include <ciso646>
#include <cmath>
#include <cstddef>
#include <cstdio>
#include <cstdlib>
#include <functional>
#include <initializer_list>
#include <iomanip>
@ -53,6 +55,7 @@ Class @ref nlohmann::basic_json is a good entry point for the documentation.
#include <map>
#include <memory>
#include <sstream>
#include <stdexcept>
#include <string>
#include <type_traits>
#include <utility>
@ -65,6 +68,12 @@ Class @ref nlohmann::basic_json is a good entry point for the documentation.
#endif
#endif
// disable float-equal warnings on GCC/clang
#if defined(__clang__) || defined(__GNUC__) || defined(__GNUG__)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wfloat-equal"
#endif
// enable ssize_t for MSVC
#ifdef _MSC_VER
#include <basetsd.h>
@ -100,12 +109,6 @@ struct has_mapped_type
static constexpr bool value = sizeof(test<T>(0)) == 1;
};
/// "equality" comparison for floating point numbers
template<typename T>
static bool approx(const T a, const T b)
{
return not (a > b or a < b);
}
}
/*!
@ -2671,14 +2674,14 @@ class basic_json
@since version 1.0.0
*/
template<typename ValueType, typename
std::enable_if<
not std::is_pointer<ValueType>::value
and not std::is_same<ValueType, typename string_t::value_type>::value
template < typename ValueType, typename
std::enable_if <
not std::is_pointer<ValueType>::value
and not std::is_same<ValueType, typename string_t::value_type>::value
#ifndef _MSC_VER // Fix for issue #167 operator<< abiguity under VS2015
and not std::is_same<ValueType, std::initializer_list<typename string_t::value_type>>::value
and not std::is_same<ValueType, std::initializer_list<typename string_t::value_type>>::value
#endif
, int>::type = 0>
, int >::type = 0 >
operator ValueType() const
{
// delegate the call to get<>() const
@ -3062,8 +3065,6 @@ class basic_json
the object and filled with a `null` value to make `key` a valid reference.
In case the value was `null` before, it is converted to an object.
@note This function is required for compatibility reasons with Clang.
@param[in] key key of the element to access
@return reference to the element at key @a key
@ -3083,25 +3084,9 @@ class basic_json
@since version 1.0.0
*/
template<typename T, std::size_t n>
reference operator[](const T (&key)[n])
reference operator[](T * (&key)[n])
{
// implicitly convert null to object
if (is_null())
{
m_type = value_t::object;
m_value = value_t::object;
}
// at only works for objects
if (is_object())
{
assert(m_value.object != nullptr);
return m_value.object->operator[](key);
}
else
{
throw std::domain_error("cannot use operator[] with " + type_name());
}
return operator[](static_cast<const T>(key));
}
/*!
@ -3134,7 +3119,89 @@ class basic_json
@since version 1.0.0
*/
template<typename T, std::size_t n>
const_reference operator[](const T (&key)[n]) const
const_reference operator[](T * (&key)[n]) const
{
return operator[](static_cast<const T>(key));
}
/*!
@brief access specified object element
Returns a reference to the element at with specified key @a key.
@note If @a key is not found in the object, then it is silently added to
the object and filled with a `null` value to make `key` a valid reference.
In case the value was `null` before, it is converted to an object.
@param[in] key key of the element to access
@return reference to the element at key @a key
@throw std::domain_error if JSON is not an object or null; example:
`"cannot use operator[] with null"`
@complexity Logarithmic in the size of the container.
@liveexample{The example below shows how object elements can be read and
written using the [] operator.,operatorarray__key_type}
@sa @ref at(const typename object_t::key_type&) for access by reference
with range checking
@sa @ref value() for access by value with a default value
@since version 1.0.1
*/
template<typename T>
reference operator[](T* key)
{
// implicitly convert null to object
if (is_null())
{
m_type = value_t::object;
m_value = value_t::object;
}
// at only works for objects
if (is_object())
{
assert(m_value.object != nullptr);
return m_value.object->operator[](key);
}
else
{
throw std::domain_error("cannot use operator[] with " + type_name());
}
}
/*!
@brief read-only access specified object element
Returns a const reference to the element at with specified key @a key. No
bounds checking is performed.
@warning If the element with key @a key does not exist, the behavior is
undefined.
@param[in] key key of the element to access
@return const reference to the element at key @a key
@throw std::domain_error if JSON is not an object; example: `"cannot use
operator[] with null"`
@complexity Logarithmic in the size of the container.
@liveexample{The example below shows how object elements can be read using
the [] operator.,operatorarray__key_type_const}
@sa @ref at(const typename object_t::key_type&) for access by reference
with range checking
@sa @ref value() for access by value with a default value
@since version 1.0.1
*/
template<typename T>
const_reference operator[](T* key) const
{
// at only works for objects
if (is_object())
@ -4785,7 +4852,7 @@ class basic_json
}
case value_t::number_float:
{
return approx(lhs.m_value.number_float, rhs.m_value.number_float);
return lhs.m_value.number_float == rhs.m_value.number_float;
}
default:
{
@ -4795,13 +4862,11 @@ class basic_json
}
else if (lhs_type == value_t::number_integer and rhs_type == value_t::number_float)
{
return approx(static_cast<number_float_t>(lhs.m_value.number_integer),
rhs.m_value.number_float);
return static_cast<number_float_t>(lhs.m_value.number_integer == rhs.m_value.number_float);
}
else if (lhs_type == value_t::number_float and rhs_type == value_t::number_integer)
{
return approx(lhs.m_value.number_float,
static_cast<number_float_t>(rhs.m_value.number_integer));
return lhs.m_value.number_float == static_cast<number_float_t>(rhs.m_value.number_integer);
}
return false;
}
@ -7304,7 +7369,7 @@ class basic_json
// check if conversion loses precision (special case -0.0 always loses precision)
const auto int_val = static_cast<number_integer_t>(result.m_value.number_float);
if (approx(result.m_value.number_float, static_cast<number_float_t>(int_val)) &&
if (result.m_value.number_float == static_cast<number_float_t>(int_val) &&
result.m_value.number_integer != json_value(-0.0f).number_integer)
{
// we would not lose precision -> return int
@ -7449,4 +7514,9 @@ inline nlohmann::json operator "" _json(const char* s, std::size_t)
return nlohmann::json::parse(reinterpret_cast<const nlohmann::json::string_t::value_type*>(s));
}
// restore GCC/clang diagnostic settings
#if defined(__clang__) || defined(__GNUC__) || defined(__GNUG__)
#pragma GCC diagnostic pop
#endif
#endif