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json
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Merge branch 'develop' into feature/release_information

pull/430/head
Niels Lohmann 2017-01-04 20:06:23 +01:00
parent ea4d71ee21 9f6c86f233
commit e1b89dd1d6
7 changed files with 287 additions and 348 deletions
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1
README.md
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@ -600,6 +600,7 @@ Thanks a lot for helping out!
- Other encodings such as Latin-1, UTF-16, or UTF-32 are not supported and will yield parse errors.
- [Unicode noncharacters](http://www.unicode.org/faq/private_use.html#nonchar1) will not be replaced by the library.
- Invalid surrogates (e.g., incomplete pairs such as `\uDEAD`) will yield parse errors.
- The strings stored in the library are UTF-8 encoded. When using the default string type (`std::string`), note that its length/size functions return the number of stored bytes rather than the number of characters or glyphs.
## Execute unit tests

297
src/json.hpp
View File

@ -58,13 +58,11 @@ SOFTWARE.
// exclude unsupported compilers
#if defined(__clang__)
#define CLANG_VERSION (__clang_major__ * 10000 + __clang_minor__ * 100 + __clang_patchlevel__)
#if CLANG_VERSION < 30400
#if (__clang_major__ * 10000 + __clang_minor__ * 100 + __clang_patchlevel__) < 30400
#error "unsupported Clang version - see https://github.com/nlohmann/json#supported-compilers"
#endif
#elif defined(__GNUC__)
#define GCC_VERSION (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__)
#if GCC_VERSION < 40900
#if (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__) < 40900
#error "unsupported GCC version - see https://github.com/nlohmann/json#supported-compilers"
#endif
#endif
@ -128,7 +126,7 @@ struct has_mapped_type
std::is_integral<decltype(detect(std::declval<T>()))>::value;
};
}
} // namespace
/*!
@brief a class to store JSON values
@ -153,7 +151,8 @@ default)
@requirement The class satisfies the following concept requirements:
- Basic
- [DefaultConstructible](http://en.cppreference.com/w/cpp/concept/DefaultConstructible):
JSON values can be default constructed. The result will be a JSON null value.
JSON values can be default constructed. The result will be a JSON null
value.
- [MoveConstructible](http://en.cppreference.com/w/cpp/concept/MoveConstructible):
A JSON value can be constructed from an rvalue argument.
- [CopyConstructible](http://en.cppreference.com/w/cpp/concept/CopyConstructible):
@ -168,8 +167,8 @@ default)
- [StandardLayoutType](http://en.cppreference.com/w/cpp/concept/StandardLayoutType):
JSON values have
[standard layout](http://en.cppreference.com/w/cpp/language/data_members#Standard_layout):
All non-static data members are private and standard layout types, the class
has no virtual functions or (virtual) base classes.
All non-static data members are private and standard layout types, the
class has no virtual functions or (virtual) base classes.
- Library-wide
- [EqualityComparable](http://en.cppreference.com/w/cpp/concept/EqualityComparable):
JSON values can be compared with `==`, see @ref
@ -507,6 +506,12 @@ class basic_json
std::string
@endcode
#### Encoding
Strings are stored in UTF-8 encoding. Therefore, functions like
`std::string::size()` or `std::string::length()` return the number of
bytes in the string rather than the number of characters or glyphs.
#### String comparison
[RFC 7159](http://rfc7159.net/rfc7159) states:
@ -825,7 +830,7 @@ class basic_json
};
std::unique_ptr<T, decltype(deleter)> object(alloc.allocate(1), deleter);
alloc.construct(object.get(), std::forward<Args>(args)...);
assert(object.get() != nullptr);
assert(object != nullptr);
return object.release();
}
@ -1952,13 +1957,15 @@ class basic_json
case value_t::object:
{
m_value.object = create<object_t>(first.m_it.object_iterator, last.m_it.object_iterator);
m_value.object = create<object_t>(first.m_it.object_iterator,
last.m_it.object_iterator);
break;
}
case value_t::array:
{
m_value.array = create<array_t>(first.m_it.array_iterator, last.m_it.array_iterator);
m_value.array = create<array_t>(first.m_it.array_iterator,
last.m_it.array_iterator);
break;
}
@ -2641,29 +2648,25 @@ class basic_json
template<class T, typename std::enable_if<
std::is_convertible<typename object_t::key_type, typename T::key_type>::value and
std::is_convertible<basic_json_t, typename T::mapped_type>::value, int>::type = 0>
T get_impl(T*) const
T get_impl(T* /*unused*/) const
{
if (is_object())
{
return T(m_value.object->begin(), m_value.object->end());
}
else
{
throw std::domain_error("type must be object, but is " + type_name());
}
throw std::domain_error("type must be object, but is " + type_name());
}
/// get an object (explicit)
object_t get_impl(object_t*) const
object_t get_impl(object_t* /*unused*/) const
{
if (is_object())
{
return *(m_value.object);
}
else
{
throw std::domain_error("type must be object, but is " + type_name());
}
throw std::domain_error("type must be object, but is " + type_name());
}
/// get an array (explicit)
@ -2673,7 +2676,7 @@ class basic_json
not std::is_arithmetic<T>::value and
not std::is_convertible<std::string, T>::value and
not has_mapped_type<T>::value, int>::type = 0>
T get_impl(T*) const
T get_impl(T* /*unused*/) const
{
if (is_array())
{
@ -2685,17 +2688,15 @@ class basic_json
});
return to_vector;
}
else
{
throw std::domain_error("type must be array, but is " + type_name());
}
throw std::domain_error("type must be array, but is " + type_name());
}
/// get an array (explicit)
template<class T, typename std::enable_if<
std::is_convertible<basic_json_t, T>::value and
not std::is_same<basic_json_t, T>::value, int>::type = 0>
std::vector<T> get_impl(std::vector<T>*) const
std::vector<T> get_impl(std::vector<T>* /*unused*/) const
{
if (is_array())
{
@ -2708,60 +2709,52 @@ class basic_json
});
return to_vector;
}
else
{
throw std::domain_error("type must be array, but is " + type_name());
}
throw std::domain_error("type must be array, but is " + type_name());
}
/// get an array (explicit)
template<class T, typename std::enable_if<
std::is_same<basic_json, typename T::value_type>::value and
not has_mapped_type<T>::value, int>::type = 0>
T get_impl(T*) const
T get_impl(T* /*unused*/) const
{
if (is_array())
{
return T(m_value.array->begin(), m_value.array->end());
}
else
{
throw std::domain_error("type must be array, but is " + type_name());
}
throw std::domain_error("type must be array, but is " + type_name());
}
/// get an array (explicit)
array_t get_impl(array_t*) const
array_t get_impl(array_t* /*unused*/) const
{
if (is_array())
{
return *(m_value.array);
}
else
{
throw std::domain_error("type must be array, but is " + type_name());
}
throw std::domain_error("type must be array, but is " + type_name());
}
/// get a string (explicit)
template<typename T, typename std::enable_if<
std::is_convertible<string_t, T>::value, int>::type = 0>
T get_impl(T*) const
T get_impl(T* /*unused*/) const
{
if (is_string())
{
return *m_value.string;
}
else
{
throw std::domain_error("type must be string, but is " + type_name());
}
throw std::domain_error("type must be string, but is " + type_name());
}
/// get a number (explicit)
template<typename T, typename std::enable_if<
std::is_arithmetic<T>::value, int>::type = 0>
T get_impl(T*) const
T get_impl(T* /*unused*/) const
{
switch (m_type)
{
@ -2788,7 +2781,7 @@ class basic_json
}
/// get a boolean (explicit)
constexpr boolean_t get_impl(boolean_t*) const
constexpr boolean_t get_impl(boolean_t* /*unused*/) const
{
return is_boolean()
? m_value.boolean
@ -2796,85 +2789,85 @@ class basic_json
}
/// get a pointer to the value (object)
object_t* get_impl_ptr(object_t*) noexcept
object_t* get_impl_ptr(object_t* /*unused*/) noexcept
{
return is_object() ? m_value.object : nullptr;
}
/// get a pointer to the value (object)
constexpr const object_t* get_impl_ptr(const object_t*) const noexcept
constexpr const object_t* get_impl_ptr(const object_t* /*unused*/) const noexcept
{
return is_object() ? m_value.object : nullptr;
}
/// get a pointer to the value (array)
array_t* get_impl_ptr(array_t*) noexcept
array_t* get_impl_ptr(array_t* /*unused*/) noexcept
{
return is_array() ? m_value.array : nullptr;
}
/// get a pointer to the value (array)
constexpr const array_t* get_impl_ptr(const array_t*) const noexcept
constexpr const array_t* get_impl_ptr(const array_t* /*unused*/) const noexcept
{
return is_array() ? m_value.array : nullptr;
}
/// get a pointer to the value (string)
string_t* get_impl_ptr(string_t*) noexcept
string_t* get_impl_ptr(string_t* /*unused*/) noexcept
{
return is_string() ? m_value.string : nullptr;
}
/// get a pointer to the value (string)
constexpr const string_t* get_impl_ptr(const string_t*) const noexcept
constexpr const string_t* get_impl_ptr(const string_t* /*unused*/) const noexcept
{
return is_string() ? m_value.string : nullptr;
}
/// get a pointer to the value (boolean)
boolean_t* get_impl_ptr(boolean_t*) noexcept
boolean_t* get_impl_ptr(boolean_t* /*unused*/) noexcept
{
return is_boolean() ? &m_value.boolean : nullptr;
}
/// get a pointer to the value (boolean)
constexpr const boolean_t* get_impl_ptr(const boolean_t*) const noexcept
constexpr const boolean_t* get_impl_ptr(const boolean_t* /*unused*/) const noexcept
{
return is_boolean() ? &m_value.boolean : nullptr;
}
/// get a pointer to the value (integer number)
number_integer_t* get_impl_ptr(number_integer_t*) noexcept
number_integer_t* get_impl_ptr(number_integer_t* /*unused*/) noexcept
{
return is_number_integer() ? &m_value.number_integer : nullptr;
}
/// get a pointer to the value (integer number)
constexpr const number_integer_t* get_impl_ptr(const number_integer_t*) const noexcept
constexpr const number_integer_t* get_impl_ptr(const number_integer_t* /*unused*/) const noexcept
{
return is_number_integer() ? &m_value.number_integer : nullptr;
}
/// get a pointer to the value (unsigned number)
number_unsigned_t* get_impl_ptr(number_unsigned_t*) noexcept
number_unsigned_t* get_impl_ptr(number_unsigned_t* /*unused*/) noexcept
{
return is_number_unsigned() ? &m_value.number_unsigned : nullptr;
}
/// get a pointer to the value (unsigned number)
constexpr const number_unsigned_t* get_impl_ptr(const number_unsigned_t*) const noexcept
constexpr const number_unsigned_t* get_impl_ptr(const number_unsigned_t* /*unused*/) const noexcept
{
return is_number_unsigned() ? &m_value.number_unsigned : nullptr;
}
/// get a pointer to the value (floating-point number)
number_float_t* get_impl_ptr(number_float_t*) noexcept
number_float_t* get_impl_ptr(number_float_t* /*unused*/) noexcept
{
return is_number_float() ? &m_value.number_float : nullptr;
}
/// get a pointer to the value (floating-point number)
constexpr const number_float_t* get_impl_ptr(const number_float_t*) const noexcept
constexpr const number_float_t* get_impl_ptr(const number_float_t* /*unused*/) const noexcept
{
return is_number_float() ? &m_value.number_float : nullptr;
}
@ -2903,11 +2896,9 @@ class basic_json
{
return *ptr;
}
else
{
throw std::domain_error("incompatible ReferenceType for get_ref, actual type is " +
obj.type_name());
}
throw std::domain_error("incompatible ReferenceType for get_ref, actual type is " +
obj.type_name());
}
public:
@ -3158,7 +3149,7 @@ class basic_json
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
#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
#endif
, int >::type = 0 >
@ -3407,10 +3398,8 @@ class basic_json
return m_value.array->operator[](idx);
}
else
{
throw std::domain_error("cannot use operator[] with " + type_name());
}
throw std::domain_error("cannot use operator[] with " + type_name());
}
/*!
@ -3439,10 +3428,8 @@ class basic_json
{
return m_value.array->operator[](idx);
}
else
{
throw std::domain_error("cannot use operator[] with " + type_name());
}
throw std::domain_error("cannot use operator[] with " + type_name());
}
/*!
@ -3487,10 +3474,8 @@ class basic_json
{
return m_value.object->operator[](key);
}
else
{
throw std::domain_error("cannot use operator[] with " + type_name());
}
throw std::domain_error("cannot use operator[] with " + type_name());
}
/*!
@ -3531,10 +3516,8 @@ class basic_json
assert(m_value.object->find(key) != m_value.object->end());
return m_value.object->find(key)->second;
}
else
{
throw std::domain_error("cannot use operator[] with " + type_name());
}
throw std::domain_error("cannot use operator[] with " + type_name());
}
/*!
@ -3648,10 +3631,8 @@ class basic_json
{
return m_value.object->operator[](key);
}
else
{
throw std::domain_error("cannot use operator[] with " + type_name());
}
throw std::domain_error("cannot use operator[] with " + type_name());
}
/*!
@ -3693,10 +3674,8 @@ class basic_json
assert(m_value.object->find(key) != m_value.object->end());
return m_value.object->find(key)->second;
}
else
{
throw std::domain_error("cannot use operator[] with " + type_name());
}
throw std::domain_error("cannot use operator[] with " + type_name());
}
/*!
@ -3760,10 +3739,8 @@ class basic_json
{
return *it;
}
else
{
return default_value;
}
return default_value;
}
else
{
@ -3838,10 +3815,8 @@ class basic_json
return default_value;
}
}
else
{
throw std::domain_error("cannot use value() with " + type_name());
}
throw std::domain_error("cannot use value() with " + type_name());
}
/*!
@ -4189,10 +4164,8 @@ class basic_json
{
return m_value.object->erase(key);
}
else
{
throw std::domain_error("cannot use erase() with " + type_name());
}
throw std::domain_error("cannot use erase() with " + type_name());
}
/*!
@ -5155,8 +5128,8 @@ class basic_json
/*!
@brief add an object to an object if key does not exist
Inserts a new element into a JSON object constructed in-place with the given
@a args if there is no element with the key in the container. If the
Inserts a new element into a JSON object constructed in-place with the
given @a args if there is no element with the key in the container. If the
function is called on a JSON null value, an empty object is created before
appending the value created from @a args.
@ -5221,8 +5194,8 @@ class basic_json
@throw std::domain_error if @a pos is not an iterator of *this; example:
`"iterator does not fit current value"`
@complexity Constant plus linear in the distance between pos and end of the
container.
@complexity Constant plus linear in the distance between pos and end of
the container.
@liveexample{The example shows how `insert()` is used.,insert}
@ -5244,10 +5217,8 @@ class basic_json
result.m_it.array_iterator = m_value.array->insert(pos.m_it.array_iterator, val);
return result;
}
else
{
throw std::domain_error("cannot use insert() with " + type_name());
}
throw std::domain_error("cannot use insert() with " + type_name());
}
/*!
@ -5299,10 +5270,8 @@ class basic_json
result.m_it.array_iterator = m_value.array->insert(pos.m_it.array_iterator, cnt, val);
return result;
}
else
{
throw std::domain_error("cannot use insert() with " + type_name());
}
throw std::domain_error("cannot use insert() with " + type_name());
}
/*!
@ -5452,8 +5421,8 @@ class basic_json
@param[in,out] other array to exchange the contents with
@throw std::domain_error when JSON value is not an array; example: `"cannot
use swap() with string"`
@throw std::domain_error when JSON value is not an array; example:
`"cannot use swap() with string"`
@complexity Constant.
@ -6180,7 +6149,7 @@ class basic_json
{
// assertion to check that the iterator range is indeed contiguous,
// see http://stackoverflow.com/a/35008842/266378 for more discussion
assert(std::accumulate(first, last, std::make_pair<bool, int>(true, 0),
assert(std::accumulate(first, last, std::pair<bool, int>(true, 0),
[&first](std::pair<bool, int> res, decltype(*first) val)
{
res.first &= (val == *(std::next(std::addressof(*first), res.second++)));
@ -6385,7 +6354,7 @@ class basic_json
}
T result;
uint8_t* ptr = reinterpret_cast<uint8_t*>(&result);
auto* ptr = reinterpret_cast<uint8_t*>(&result);
for (size_t i = 0; i < sizeof(T); ++i)
{
*ptr++ = vec[current_index + sizeof(T) - i];
@ -6426,8 +6395,9 @@ class basic_json
if (j.m_value.number_integer >= 0)
{
// MessagePack does not differentiate between positive
// signed integers and unsigned integers. Therefore, we used
// the code from the value_t::number_unsigned case here.
// signed integers and unsigned integers. Therefore, we
// used the code from the value_t::number_unsigned case
// here.
if (j.m_value.number_unsigned < 128)
{
// positive fixnum
@ -6531,7 +6501,7 @@ class basic_json
{
// float 64
v.push_back(0xcb);
const uint8_t* helper = reinterpret_cast<const uint8_t*>(&(j.m_value.number_float));
const auto* helper = reinterpret_cast<const uint8_t*>(&(j.m_value.number_float));
for (size_t i = 0; i < 8; ++i)
{
v.push_back(helper[7 - i]);
@ -6702,8 +6672,8 @@ class basic_json
}
else
{
// The conversions below encode the sign in the first byte,
// and the value is converted to a positive number.
// The conversions below encode the sign in the first
// byte, and the value is converted to a positive number.
const auto positive_number = -1 - j.m_value.number_integer;
if (j.m_value.number_integer >= -24)
{
@ -6774,7 +6744,7 @@ class basic_json
{
// Double-Precision Float
v.push_back(0xfb);
const uint8_t* helper = reinterpret_cast<const uint8_t*>(&(j.m_value.number_float));
const auto* helper = reinterpret_cast<const uint8_t*>(&(j.m_value.number_float));
for (size_t i = 0; i < 8; ++i)
{
v.push_back(helper[7 - i]);
@ -6908,12 +6878,12 @@ class basic_json
To secure the access to the byte vector during CBOR/MessagePack
deserialization, bytes are copied from the vector into buffers. This
function checks if the number of bytes to copy (@a len) does not exceed the
size @s size of the vector. Additionally, an @a offset is given from where
to start reading the bytes.
function checks if the number of bytes to copy (@a len) does not exceed
the size @s size of the vector. Additionally, an @a offset is given from
where to start reading the bytes.
This function checks whether reading the bytes is safe; that is, offset is a
valid index in the vector, offset+len
This function checks whether reading the bytes is safe; that is, offset is
a valid index in the vector, offset+len
@param[in] size size of the byte vector
@param[in] len number of bytes to read
@ -6974,7 +6944,7 @@ class basic_json
{
return v[current_idx];
}
else if (v[current_idx] <= 0x8f) // fixmap
if (v[current_idx] <= 0x8f) // fixmap
{
basic_json result = value_t::object;
const size_t len = v[current_idx] & 0x0f;
@ -7030,11 +7000,10 @@ class basic_json
case 0xca: // float 32
{
// copy bytes in reverse order into the double variable
check_length(v.size(), sizeof(float), 1);
float res;
for (size_t byte = 0; byte < sizeof(float); ++byte)
{
reinterpret_cast<uint8_t*>(&res)[sizeof(float) - byte - 1] = v[current_idx + 1 + byte];
reinterpret_cast<uint8_t*>(&res)[sizeof(float) - byte - 1] = v.at(current_idx + 1 + byte);
}
idx += sizeof(float); // skip content bytes
return res;
@ -7043,11 +7012,10 @@ class basic_json
case 0xcb: // float 64
{
// copy bytes in reverse order into the double variable
check_length(v.size(), sizeof(double), 1);
double res;
for (size_t byte = 0; byte < sizeof(double); ++byte)
{
reinterpret_cast<uint8_t*>(&res)[sizeof(double) - byte - 1] = v[current_idx + 1 + byte];
reinterpret_cast<uint8_t*>(&res)[sizeof(double) - byte - 1] = v.at(current_idx + 1 + byte);
}
idx += sizeof(double); // skip content bytes
return res;
@ -7609,7 +7577,6 @@ class basic_json
case 0xf9: // Half-Precision Float (two-byte IEEE 754)
{
check_length(v.size(), 2, 1);
idx += 2; // skip two content bytes
// code from RFC 7049, Appendix D, Figure 3:
@ -7619,7 +7586,7 @@ class basic_json
// include at least decoding support for them even without such
// support. An example of a small decoder for half-precision
// floating-point numbers in the C language is shown in Fig. 3.
const int half = (v[current_idx + 1] << 8) + v[current_idx + 2];
const int half = (v.at(current_idx + 1) << 8) + v.at(current_idx + 2);
const int exp = (half >> 10) & 0x1f;
const int mant = half & 0x3ff;
double val;
@ -7635,17 +7602,16 @@ class basic_json
{
val = mant == 0 ? INFINITY : NAN;
}
return half & 0x8000 ? -val : val;
return (half & 0x8000) != 0 ? -val : val;
}
case 0xfa: // Single-Precision Float (four-byte IEEE 754)
{
// copy bytes in reverse order into the float variable
check_length(v.size(), sizeof(float), 1);
float res;
for (size_t byte = 0; byte < sizeof(float); ++byte)
{
reinterpret_cast<uint8_t*>(&res)[sizeof(float) - byte - 1] = v[current_idx + 1 + byte];
reinterpret_cast<uint8_t*>(&res)[sizeof(float) - byte - 1] = v.at(current_idx + 1 + byte);
}
idx += sizeof(float); // skip content bytes
return res;
@ -7653,12 +7619,11 @@ class basic_json
case 0xfb: // Double-Precision Float (eight-byte IEEE 754)
{
check_length(v.size(), sizeof(double), 1);
// copy bytes in reverse order into the double variable
double res;
for (size_t byte = 0; byte < sizeof(double); ++byte)
{
reinterpret_cast<uint8_t*>(&res)[sizeof(double) - byte - 1] = v[current_idx + 1 + byte];
reinterpret_cast<uint8_t*>(&res)[sizeof(double) - byte - 1] = v.at(current_idx + 1 + byte);
}
idx += sizeof(double); // skip content bytes
return res;
@ -7858,10 +7823,8 @@ class basic_json
// from c (1 byte) to \uxxxx (6 bytes)
return res + 5;
}
else
{
return res;
}
return res;
}
}
});
@ -8567,10 +8530,8 @@ class basic_json
{
return *m_object;
}
else
{
throw std::out_of_range("cannot get value");
}
throw std::out_of_range("cannot get value");
}
}
}
@ -8603,10 +8564,8 @@ class basic_json
{
return m_object;
}
else
{
throw std::out_of_range("cannot get value");
}
throw std::out_of_range("cannot get value");
}
}
}
@ -8919,10 +8878,8 @@ class basic_json
{
return *m_object;
}
else
{
throw std::out_of_range("cannot get value");
}
throw std::out_of_range("cannot get value");
}
}
}
@ -8939,10 +8896,8 @@ class basic_json
{
return m_it.object_iterator->first;
}
else
{
throw std::domain_error("cannot use key() for non-object iterators");
}
throw std::domain_error("cannot use key() for non-object iterators");
}
/*!
@ -10267,7 +10222,7 @@ basic_json_parser_66:
assert(m_marker == nullptr or m_marker <= m_limit);
// number of processed characters (p)
const size_t num_processed_chars = static_cast<size_t>(m_start - m_content);
const auto num_processed_chars = static_cast<size_t>(m_start - m_content);
// offset for m_marker wrt. to m_start
const auto offset_marker = (m_marker == nullptr) ? 0 : m_marker - m_start;
// number of unprocessed characters (u)
@ -10659,7 +10614,7 @@ basic_json_parser_66:
else
{
// parse with strtod
result.m_value.number_float = str_to_float_t(static_cast<number_float_t*>(nullptr), NULL);
result.m_value.number_float = str_to_float_t(static_cast<number_float_t*>(nullptr), nullptr);
// replace infinity and NAN by null
if (not std::isfinite(result.m_value.number_float))
@ -11394,7 +11349,7 @@ basic_json_parser_66:
// - start: position after the previous slash
for (
// search for the first slash after the first character
size_t slash = reference_string.find_first_of("/", 1),
size_t slash = reference_string.find_first_of('/', 1),
// set the beginning of the first reference token
start = 1;
// we can stop if start == string::npos+1 = 0
@ -11403,16 +11358,16 @@ basic_json_parser_66:
// (will eventually be 0 if slash == std::string::npos)
start = slash + 1,
// find next slash
slash = reference_string.find_first_of("/", start))
slash = reference_string.find_first_of('/', start))
{
// use the text between the beginning of the reference token
// (start) and the last slash (slash).
auto reference_token = reference_string.substr(start, slash - start);
// check reference tokens are properly escaped
for (size_t pos = reference_token.find_first_of("~");
for (size_t pos = reference_token.find_first_of('~');
pos != std::string::npos;
pos = reference_token.find_first_of("~", pos + 1))
pos = reference_token.find_first_of('~', pos + 1))
{
assert(reference_token[pos] == '~');
@ -12246,7 +12201,7 @@ uses the standard template types.
@since version 1.0.0
*/
using json = basic_json<>;
}
} // namespace nlohmann
///////////////////////
@ -12287,7 +12242,7 @@ struct hash<nlohmann::json>
return h(j.dump());
}
};
}
} // namespace std
/*!
@brief user-defined string literal for JSON values

297
src/json.hpp.re2c
View File

@ -58,13 +58,11 @@ SOFTWARE.
// exclude unsupported compilers
#if defined(__clang__)
#define CLANG_VERSION (__clang_major__ * 10000 + __clang_minor__ * 100 + __clang_patchlevel__)
#if CLANG_VERSION < 30400
#if (__clang_major__ * 10000 + __clang_minor__ * 100 + __clang_patchlevel__) < 30400
#error "unsupported Clang version - see https://github.com/nlohmann/json#supported-compilers"
#endif
#elif defined(__GNUC__)
#define GCC_VERSION (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__)
#if GCC_VERSION < 40900
#if (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__) < 40900
#error "unsupported GCC version - see https://github.com/nlohmann/json#supported-compilers"
#endif
#endif
@ -128,7 +126,7 @@ struct has_mapped_type
std::is_integral<decltype(detect(std::declval<T>()))>::value;
};
}
} // namespace
/*!
@brief a class to store JSON values
@ -153,7 +151,8 @@ default)
@requirement The class satisfies the following concept requirements:
- Basic
- [DefaultConstructible](http://en.cppreference.com/w/cpp/concept/DefaultConstructible):
JSON values can be default constructed. The result will be a JSON null value.
JSON values can be default constructed. The result will be a JSON null
value.
- [MoveConstructible](http://en.cppreference.com/w/cpp/concept/MoveConstructible):
A JSON value can be constructed from an rvalue argument.
- [CopyConstructible](http://en.cppreference.com/w/cpp/concept/CopyConstructible):
@ -168,8 +167,8 @@ default)
- [StandardLayoutType](http://en.cppreference.com/w/cpp/concept/StandardLayoutType):
JSON values have
[standard layout](http://en.cppreference.com/w/cpp/language/data_members#Standard_layout):
All non-static data members are private and standard layout types, the class
has no virtual functions or (virtual) base classes.
All non-static data members are private and standard layout types, the
class has no virtual functions or (virtual) base classes.
- Library-wide
- [EqualityComparable](http://en.cppreference.com/w/cpp/concept/EqualityComparable):
JSON values can be compared with `==`, see @ref
@ -507,6 +506,12 @@ class basic_json
std::string
@endcode
#### Encoding
Strings are stored in UTF-8 encoding. Therefore, functions like
`std::string::size()` or `std::string::length()` return the number of
bytes in the string rather than the number of characters or glyphs.
#### String comparison
[RFC 7159](http://rfc7159.net/rfc7159) states:
@ -825,7 +830,7 @@ class basic_json
};
std::unique_ptr<T, decltype(deleter)> object(alloc.allocate(1), deleter);
alloc.construct(object.get(), std::forward<Args>(args)...);
assert(object.get() != nullptr);
assert(object != nullptr);
return object.release();
}
@ -1952,13 +1957,15 @@ class basic_json
case value_t::object:
{
m_value.object = create<object_t>(first.m_it.object_iterator, last.m_it.object_iterator);
m_value.object = create<object_t>(first.m_it.object_iterator,
last.m_it.object_iterator);
break;
}
case value_t::array:
{
m_value.array = create<array_t>(first.m_it.array_iterator, last.m_it.array_iterator);
m_value.array = create<array_t>(first.m_it.array_iterator,
last.m_it.array_iterator);
break;
}
@ -2641,29 +2648,25 @@ class basic_json
template<class T, typename std::enable_if<
std::is_convertible<typename object_t::key_type, typename T::key_type>::value and
std::is_convertible<basic_json_t, typename T::mapped_type>::value, int>::type = 0>
T get_impl(T*) const
T get_impl(T* /*unused*/) const
{
if (is_object())
{
return T(m_value.object->begin(), m_value.object->end());
}
else
{
throw std::domain_error("type must be object, but is " + type_name());
}
throw std::domain_error("type must be object, but is " + type_name());
}
/// get an object (explicit)
object_t get_impl(object_t*) const
object_t get_impl(object_t* /*unused*/) const
{
if (is_object())
{
return *(m_value.object);
}
else
{
throw std::domain_error("type must be object, but is " + type_name());
}
throw std::domain_error("type must be object, but is " + type_name());
}
/// get an array (explicit)
@ -2673,7 +2676,7 @@ class basic_json
not std::is_arithmetic<T>::value and
not std::is_convertible<std::string, T>::value and
not has_mapped_type<T>::value, int>::type = 0>
T get_impl(T*) const
T get_impl(T* /*unused*/) const
{
if (is_array())
{
@ -2685,17 +2688,15 @@ class basic_json
});
return to_vector;
}
else
{
throw std::domain_error("type must be array, but is " + type_name());
}
throw std::domain_error("type must be array, but is " + type_name());
}
/// get an array (explicit)
template<class T, typename std::enable_if<
std::is_convertible<basic_json_t, T>::value and
not std::is_same<basic_json_t, T>::value, int>::type = 0>
std::vector<T> get_impl(std::vector<T>*) const
std::vector<T> get_impl(std::vector<T>* /*unused*/) const
{
if (is_array())
{
@ -2708,60 +2709,52 @@ class basic_json
});
return to_vector;
}
else
{
throw std::domain_error("type must be array, but is " + type_name());
}
throw std::domain_error("type must be array, but is " + type_name());
}
/// get an array (explicit)
template<class T, typename std::enable_if<
std::is_same<basic_json, typename T::value_type>::value and
not has_mapped_type<T>::value, int>::type = 0>
T get_impl(T*) const
T get_impl(T* /*unused*/) const
{
if (is_array())
{
return T(m_value.array->begin(), m_value.array->end());
}
else
{
throw std::domain_error("type must be array, but is " + type_name());
}
throw std::domain_error("type must be array, but is " + type_name());
}
/// get an array (explicit)
array_t get_impl(array_t*) const
array_t get_impl(array_t* /*unused*/) const
{
if (is_array())
{
return *(m_value.array);
}
else
{
throw std::domain_error("type must be array, but is " + type_name());
}
throw std::domain_error("type must be array, but is " + type_name());
}
/// get a string (explicit)
template<typename T, typename std::enable_if<
std::is_convertible<string_t, T>::value, int>::type = 0>
T get_impl(T*) const
T get_impl(T* /*unused*/) const
{
if (is_string())
{
return *m_value.string;
}
else
{
throw std::domain_error("type must be string, but is " + type_name());
}
throw std::domain_error("type must be string, but is " + type_name());
}
/// get a number (explicit)
template<typename T, typename std::enable_if<
std::is_arithmetic<T>::value, int>::type = 0>
T get_impl(T*) const
T get_impl(T* /*unused*/) const
{
switch (m_type)
{
@ -2788,7 +2781,7 @@ class basic_json
}
/// get a boolean (explicit)
constexpr boolean_t get_impl(boolean_t*) const
constexpr boolean_t get_impl(boolean_t* /*unused*/) const
{
return is_boolean()
? m_value.boolean
@ -2796,85 +2789,85 @@ class basic_json
}
/// get a pointer to the value (object)
object_t* get_impl_ptr(object_t*) noexcept
object_t* get_impl_ptr(object_t* /*unused*/) noexcept
{
return is_object() ? m_value.object : nullptr;
}
/// get a pointer to the value (object)
constexpr const object_t* get_impl_ptr(const object_t*) const noexcept
constexpr const object_t* get_impl_ptr(const object_t* /*unused*/) const noexcept
{
return is_object() ? m_value.object : nullptr;
}
/// get a pointer to the value (array)
array_t* get_impl_ptr(array_t*) noexcept
array_t* get_impl_ptr(array_t* /*unused*/) noexcept
{
return is_array() ? m_value.array : nullptr;
}
/// get a pointer to the value (array)
constexpr const array_t* get_impl_ptr(const array_t*) const noexcept
constexpr const array_t* get_impl_ptr(const array_t* /*unused*/) const noexcept
{
return is_array() ? m_value.array : nullptr;
}
/// get a pointer to the value (string)
string_t* get_impl_ptr(string_t*) noexcept
string_t* get_impl_ptr(string_t* /*unused*/) noexcept
{
return is_string() ? m_value.string : nullptr;
}
/// get a pointer to the value (string)
constexpr const string_t* get_impl_ptr(const string_t*) const noexcept
constexpr const string_t* get_impl_ptr(const string_t* /*unused*/) const noexcept
{
return is_string() ? m_value.string : nullptr;
}
/// get a pointer to the value (boolean)
boolean_t* get_impl_ptr(boolean_t*) noexcept
boolean_t* get_impl_ptr(boolean_t* /*unused*/) noexcept
{
return is_boolean() ? &m_value.boolean : nullptr;
}
/// get a pointer to the value (boolean)
constexpr const boolean_t* get_impl_ptr(const boolean_t*) const noexcept
constexpr const boolean_t* get_impl_ptr(const boolean_t* /*unused*/) const noexcept
{
return is_boolean() ? &m_value.boolean : nullptr;
}
/// get a pointer to the value (integer number)
number_integer_t* get_impl_ptr(number_integer_t*) noexcept
number_integer_t* get_impl_ptr(number_integer_t* /*unused*/) noexcept
{
return is_number_integer() ? &m_value.number_integer : nullptr;
}
/// get a pointer to the value (integer number)
constexpr const number_integer_t* get_impl_ptr(const number_integer_t*) const noexcept
constexpr const number_integer_t* get_impl_ptr(const number_integer_t* /*unused*/) const noexcept
{
return is_number_integer() ? &m_value.number_integer : nullptr;
}
/// get a pointer to the value (unsigned number)
number_unsigned_t* get_impl_ptr(number_unsigned_t*) noexcept
number_unsigned_t* get_impl_ptr(number_unsigned_t* /*unused*/) noexcept
{
return is_number_unsigned() ? &m_value.number_unsigned : nullptr;
}
/// get a pointer to the value (unsigned number)
constexpr const number_unsigned_t* get_impl_ptr(const number_unsigned_t*) const noexcept
constexpr const number_unsigned_t* get_impl_ptr(const number_unsigned_t* /*unused*/) const noexcept
{
return is_number_unsigned() ? &m_value.number_unsigned : nullptr;
}
/// get a pointer to the value (floating-point number)
number_float_t* get_impl_ptr(number_float_t*) noexcept
number_float_t* get_impl_ptr(number_float_t* /*unused*/) noexcept
{
return is_number_float() ? &m_value.number_float : nullptr;
}
/// get a pointer to the value (floating-point number)
constexpr const number_float_t* get_impl_ptr(const number_float_t*) const noexcept
constexpr const number_float_t* get_impl_ptr(const number_float_t* /*unused*/) const noexcept
{
return is_number_float() ? &m_value.number_float : nullptr;
}
@ -2903,11 +2896,9 @@ class basic_json
{
return *ptr;
}
else
{
throw std::domain_error("incompatible ReferenceType for get_ref, actual type is " +
obj.type_name());
}
throw std::domain_error("incompatible ReferenceType for get_ref, actual type is " +
obj.type_name());
}
public:
@ -3158,7 +3149,7 @@ class basic_json
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
#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
#endif
, int >::type = 0 >
@ -3407,10 +3398,8 @@ class basic_json
return m_value.array->operator[](idx);
}
else
{
throw std::domain_error("cannot use operator[] with " + type_name());
}
throw std::domain_error("cannot use operator[] with " + type_name());
}
/*!
@ -3439,10 +3428,8 @@ class basic_json
{
return m_value.array->operator[](idx);
}
else
{
throw std::domain_error("cannot use operator[] with " + type_name());
}
throw std::domain_error("cannot use operator[] with " + type_name());
}
/*!
@ -3487,10 +3474,8 @@ class basic_json
{
return m_value.object->operator[](key);
}
else
{
throw std::domain_error("cannot use operator[] with " + type_name());
}
throw std::domain_error("cannot use operator[] with " + type_name());
}
/*!
@ -3531,10 +3516,8 @@ class basic_json
assert(m_value.object->find(key) != m_value.object->end());
return m_value.object->find(key)->second;
}
else
{
throw std::domain_error("cannot use operator[] with " + type_name());
}
throw std::domain_error("cannot use operator[] with " + type_name());
}
/*!
@ -3648,10 +3631,8 @@ class basic_json
{
return m_value.object->operator[](key);
}
else
{
throw std::domain_error("cannot use operator[] with " + type_name());
}
throw std::domain_error("cannot use operator[] with " + type_name());
}
/*!
@ -3693,10 +3674,8 @@ class basic_json
assert(m_value.object->find(key) != m_value.object->end());
return m_value.object->find(key)->second;
}
else
{
throw std::domain_error("cannot use operator[] with " + type_name());
}
throw std::domain_error("cannot use operator[] with " + type_name());
}
/*!
@ -3760,10 +3739,8 @@ class basic_json
{
return *it;
}
else
{
return default_value;
}
return default_value;
}
else
{
@ -3838,10 +3815,8 @@ class basic_json
return default_value;
}
}
else
{
throw std::domain_error("cannot use value() with " + type_name());
}
throw std::domain_error("cannot use value() with " + type_name());
}
/*!
@ -4189,10 +4164,8 @@ class basic_json
{
return m_value.object->erase(key);
}
else
{
throw std::domain_error("cannot use erase() with " + type_name());
}
throw std::domain_error("cannot use erase() with " + type_name());
}
/*!
@ -5155,8 +5128,8 @@ class basic_json
/*!
@brief add an object to an object if key does not exist
Inserts a new element into a JSON object constructed in-place with the given
@a args if there is no element with the key in the container. If the
Inserts a new element into a JSON object constructed in-place with the
given @a args if there is no element with the key in the container. If the
function is called on a JSON null value, an empty object is created before
appending the value created from @a args.
@ -5221,8 +5194,8 @@ class basic_json
@throw std::domain_error if @a pos is not an iterator of *this; example:
`"iterator does not fit current value"`
@complexity Constant plus linear in the distance between pos and end of the
container.
@complexity Constant plus linear in the distance between pos and end of
the container.
@liveexample{The example shows how `insert()` is used.,insert}
@ -5244,10 +5217,8 @@ class basic_json
result.m_it.array_iterator = m_value.array->insert(pos.m_it.array_iterator, val);
return result;
}
else
{
throw std::domain_error("cannot use insert() with " + type_name());
}
throw std::domain_error("cannot use insert() with " + type_name());
}
/*!
@ -5299,10 +5270,8 @@ class basic_json
result.m_it.array_iterator = m_value.array->insert(pos.m_it.array_iterator, cnt, val);
return result;
}
else
{
throw std::domain_error("cannot use insert() with " + type_name());
}
throw std::domain_error("cannot use insert() with " + type_name());
}
/*!
@ -5452,8 +5421,8 @@ class basic_json
@param[in,out] other array to exchange the contents with
@throw std::domain_error when JSON value is not an array; example: `"cannot
use swap() with string"`
@throw std::domain_error when JSON value is not an array; example:
`"cannot use swap() with string"`
@complexity Constant.
@ -6180,7 +6149,7 @@ class basic_json
{
// assertion to check that the iterator range is indeed contiguous,
// see http://stackoverflow.com/a/35008842/266378 for more discussion
assert(std::accumulate(first, last, std::make_pair<bool, int>(true, 0),
assert(std::accumulate(first, last, std::pair<bool, int>(true, 0),
[&first](std::pair<bool, int> res, decltype(*first) val)
{
res.first &= (val == *(std::next(std::addressof(*first), res.second++)));
@ -6385,7 +6354,7 @@ class basic_json
}
T result;
uint8_t* ptr = reinterpret_cast<uint8_t*>(&result);
auto* ptr = reinterpret_cast<uint8_t*>(&result);
for (size_t i = 0; i < sizeof(T); ++i)
{
*ptr++ = vec[current_index + sizeof(T) - i];
@ -6426,8 +6395,9 @@ class basic_json
if (j.m_value.number_integer >= 0)
{
// MessagePack does not differentiate between positive
// signed integers and unsigned integers. Therefore, we used
// the code from the value_t::number_unsigned case here.
// signed integers and unsigned integers. Therefore, we
// used the code from the value_t::number_unsigned case
// here.
if (j.m_value.number_unsigned < 128)
{
// positive fixnum
@ -6531,7 +6501,7 @@ class basic_json
{
// float 64
v.push_back(0xcb);
const uint8_t* helper = reinterpret_cast<const uint8_t*>(&(j.m_value.number_float));
const auto* helper = reinterpret_cast<const uint8_t*>(&(j.m_value.number_float));
for (size_t i = 0; i < 8; ++i)
{
v.push_back(helper[7 - i]);
@ -6702,8 +6672,8 @@ class basic_json
}
else
{
// The conversions below encode the sign in the first byte,
// and the value is converted to a positive number.
// The conversions below encode the sign in the first
// byte, and the value is converted to a positive number.
const auto positive_number = -1 - j.m_value.number_integer;
if (j.m_value.number_integer >= -24)
{
@ -6774,7 +6744,7 @@ class basic_json
{
// Double-Precision Float
v.push_back(0xfb);
const uint8_t* helper = reinterpret_cast<const uint8_t*>(&(j.m_value.number_float));
const auto* helper = reinterpret_cast<const uint8_t*>(&(j.m_value.number_float));
for (size_t i = 0; i < 8; ++i)
{
v.push_back(helper[7 - i]);
@ -6908,12 +6878,12 @@ class basic_json
To secure the access to the byte vector during CBOR/MessagePack
deserialization, bytes are copied from the vector into buffers. This
function checks if the number of bytes to copy (@a len) does not exceed the
size @s size of the vector. Additionally, an @a offset is given from where
to start reading the bytes.
function checks if the number of bytes to copy (@a len) does not exceed
the size @s size of the vector. Additionally, an @a offset is given from
where to start reading the bytes.
This function checks whether reading the bytes is safe; that is, offset is a
valid index in the vector, offset+len
This function checks whether reading the bytes is safe; that is, offset is
a valid index in the vector, offset+len
@param[in] size size of the byte vector
@param[in] len number of bytes to read
@ -6974,7 +6944,7 @@ class basic_json
{
return v[current_idx];
}
else if (v[current_idx] <= 0x8f) // fixmap
if (v[current_idx] <= 0x8f) // fixmap
{
basic_json result = value_t::object;
const size_t len = v[current_idx] & 0x0f;
@ -7030,11 +7000,10 @@ class basic_json
case 0xca: // float 32
{
// copy bytes in reverse order into the double variable
check_length(v.size(), sizeof(float), 1);
float res;
for (size_t byte = 0; byte < sizeof(float); ++byte)
{
reinterpret_cast<uint8_t*>(&res)[sizeof(float) - byte - 1] = v[current_idx + 1 + byte];
reinterpret_cast<uint8_t*>(&res)[sizeof(float) - byte - 1] = v.at(current_idx + 1 + byte);
}
idx += sizeof(float); // skip content bytes
return res;
@ -7043,11 +7012,10 @@ class basic_json
case 0xcb: // float 64
{
// copy bytes in reverse order into the double variable
check_length(v.size(), sizeof(double), 1);
double res;
for (size_t byte = 0; byte < sizeof(double); ++byte)
{
reinterpret_cast<uint8_t*>(&res)[sizeof(double) - byte - 1] = v[current_idx + 1 + byte];
reinterpret_cast<uint8_t*>(&res)[sizeof(double) - byte - 1] = v.at(current_idx + 1 + byte);
}
idx += sizeof(double); // skip content bytes
return res;
@ -7609,7 +7577,6 @@ class basic_json
case 0xf9: // Half-Precision Float (two-byte IEEE 754)
{
check_length(v.size(), 2, 1);
idx += 2; // skip two content bytes
// code from RFC 7049, Appendix D, Figure 3:
@ -7619,7 +7586,7 @@ class basic_json
// include at least decoding support for them even without such
// support. An example of a small decoder for half-precision
// floating-point numbers in the C language is shown in Fig. 3.
const int half = (v[current_idx + 1] << 8) + v[current_idx + 2];
const int half = (v.at(current_idx + 1) << 8) + v.at(current_idx + 2);
const int exp = (half >> 10) & 0x1f;
const int mant = half & 0x3ff;
double val;
@ -7635,17 +7602,16 @@ class basic_json
{
val = mant == 0 ? INFINITY : NAN;
}
return half & 0x8000 ? -val : val;
return (half & 0x8000) != 0 ? -val : val;
}
case 0xfa: // Single-Precision Float (four-byte IEEE 754)
{
// copy bytes in reverse order into the float variable
check_length(v.size(), sizeof(float), 1);
float res;
for (size_t byte = 0; byte < sizeof(float); ++byte)
{
reinterpret_cast<uint8_t*>(&res)[sizeof(float) - byte - 1] = v[current_idx + 1 + byte];
reinterpret_cast<uint8_t*>(&res)[sizeof(float) - byte - 1] = v.at(current_idx + 1 + byte);
}
idx += sizeof(float); // skip content bytes
return res;
@ -7653,12 +7619,11 @@ class basic_json
case 0xfb: // Double-Precision Float (eight-byte IEEE 754)
{
check_length(v.size(), sizeof(double), 1);
// copy bytes in reverse order into the double variable
double res;
for (size_t byte = 0; byte < sizeof(double); ++byte)
{
reinterpret_cast<uint8_t*>(&res)[sizeof(double) - byte - 1] = v[current_idx + 1 + byte];
reinterpret_cast<uint8_t*>(&res)[sizeof(double) - byte - 1] = v.at(current_idx + 1 + byte);
}
idx += sizeof(double); // skip content bytes
return res;
@ -7858,10 +7823,8 @@ class basic_json
// from c (1 byte) to \uxxxx (6 bytes)
return res + 5;
}
else
{
return res;
}
return res;
}
}
});
@ -8567,10 +8530,8 @@ class basic_json
{
return *m_object;
}
else
{
throw std::out_of_range("cannot get value");
}
throw std::out_of_range("cannot get value");
}
}
}
@ -8603,10 +8564,8 @@ class basic_json
{
return m_object;
}
else
{
throw std::out_of_range("cannot get value");
}
throw std::out_of_range("cannot get value");
}
}
}
@ -8919,10 +8878,8 @@ class basic_json
{
return *m_object;
}
else
{
throw std::out_of_range("cannot get value");
}
throw std::out_of_range("cannot get value");
}
}
}
@ -8939,10 +8896,8 @@ class basic_json
{
return m_it.object_iterator->first;
}
else
{
throw std::domain_error("cannot use key() for non-object iterators");
}
throw std::domain_error("cannot use key() for non-object iterators");
}
/*!
@ -9417,7 +9372,7 @@ class basic_json
assert(m_marker == nullptr or m_marker <= m_limit);
// number of processed characters (p)
const size_t num_processed_chars = static_cast<size_t>(m_start - m_content);
const auto num_processed_chars = static_cast<size_t>(m_start - m_content);
// offset for m_marker wrt. to m_start
const auto offset_marker = (m_marker == nullptr) ? 0 : m_marker - m_start;
// number of unprocessed characters (u)
@ -9809,7 +9764,7 @@ class basic_json
else
{
// parse with strtod
result.m_value.number_float = str_to_float_t(static_cast<number_float_t*>(nullptr), NULL);
result.m_value.number_float = str_to_float_t(static_cast<number_float_t*>(nullptr), nullptr);
// replace infinity and NAN by null
if (not std::isfinite(result.m_value.number_float))
@ -10544,7 +10499,7 @@ class basic_json
// - start: position after the previous slash
for (
// search for the first slash after the first character
size_t slash = reference_string.find_first_of("/", 1),
size_t slash = reference_string.find_first_of('/', 1),
// set the beginning of the first reference token
start = 1;
// we can stop if start == string::npos+1 = 0
@ -10553,16 +10508,16 @@ class basic_json
// (will eventually be 0 if slash == std::string::npos)
start = slash + 1,
// find next slash
slash = reference_string.find_first_of("/", start))
slash = reference_string.find_first_of('/', start))
{
// use the text between the beginning of the reference token
// (start) and the last slash (slash).
auto reference_token = reference_string.substr(start, slash - start);
// check reference tokens are properly escaped
for (size_t pos = reference_token.find_first_of("~");
for (size_t pos = reference_token.find_first_of('~');
pos != std::string::npos;
pos = reference_token.find_first_of("~", pos + 1))
pos = reference_token.find_first_of('~', pos + 1))
{
assert(reference_token[pos] == '~');
@ -11396,7 +11351,7 @@ uses the standard template types.
@since version 1.0.0
*/
using json = basic_json<>;
}
} // namespace nlohmann
///////////////////////
@ -11437,7 +11392,7 @@ struct hash<nlohmann::json>
return h(j.dump());
}
};
}
} // namespace std
/*!
@brief user-defined string literal for JSON values

9
test/Makefile
View File

@ -52,7 +52,7 @@ TESTCASES = $(patsubst src/unit-%.cpp,test-%,$(wildcard src/unit-*.cpp))
all: $(TESTCASES)
clean:
rm -fr json_unit $(OBJECTS) $(SOURCES:.cpp=.gcno) $(SOURCES:.cpp=.gcda) $(TESTCASES)
rm -fr json_unit $(OBJECTS) $(SOURCES:.cpp=.gcno) $(SOURCES:.cpp=.gcda) $(TESTCASES) parse_afl_fuzzer parse_cbor_fuzzer parse_msgpack_fuzzer
##############################################################################
# single test file
@ -85,13 +85,14 @@ check: $(TESTCASES)
# fuzzer
##############################################################################
FUZZER_ENGINE = src/fuzzer-driver_afl.cpp
fuzzers: parse_afl_fuzzer parse_cbor_fuzzer parse_msgpack_fuzzer
parse_afl_fuzzer:
$(CXX) $(CXXFLAGS) $(CPPFLAGS) src/fuzzer-driver_afl.cpp src/fuzzer-parse_json.cpp -o $@
$(CXX) $(CXXFLAGS) $(CPPFLAGS) $(FUZZER_ENGINE) src/fuzzer-parse_json.cpp -o $@
parse_cbor_fuzzer:
$(CXX) $(CXXFLAGS) $(CPPFLAGS) src/fuzzer-driver_afl.cpp src/fuzzer-parse_cbor.cpp -o $@
$(CXX) $(CXXFLAGS) $(CPPFLAGS) $(FUZZER_ENGINE) src/fuzzer-parse_cbor.cpp -o $@
parse_msgpack_fuzzer:
$(CXX) $(CXXFLAGS) $(CPPFLAGS) src/fuzzer-driver_afl.cpp src/fuzzer-parse_msgpack.cpp -o $@
$(CXX) $(CXXFLAGS) $(CPPFLAGS) $(FUZZER_ENGINE) src/fuzzer-parse_msgpack.cpp -o $@

2
test/src/unit-allocator.cpp
View File

@ -80,7 +80,7 @@ struct my_allocator : std::allocator<T>
}
else
{
::new(reinterpret_cast<void*>(p)) T(std::forward<Args>(args)...);
::new (reinterpret_cast<void*>(p)) T(std::forward<Args>(args)...);
}
}

2
test/src/unit-constructor1.cpp
View File

@ -912,7 +912,7 @@ TEST_CASE("constructors")
SECTION("array")
{
json j { {"one", 1}, {"two", 1u}, {"three", 2.2}, {"four", false} , 13 };
json j { {"one", 1}, {"two", 1u}, {"three", 2.2}, {"four", false}, 13 };
CHECK(j.type() == json::value_t::array);
}
}

27
test/src/unit-regression.cpp
View File

@ -663,4 +663,31 @@ TEST_CASE("regression tests")
std::vector<uint8_t> vec3 {0xbf, 0x61, 0x61, 0x01};
CHECK_THROWS_AS(json::from_cbor(vec3), std::out_of_range);
}
SECTION("issue #416 - Use-of-uninitialized-value (OSS-Fuzz issue 377)")
{
// original test case
std::vector<uint8_t> vec1
{
0x94, 0xfa, 0xfa, 0xfa, 0xfa, 0xfa, 0xfa, 0xfa,
0x3a, 0x96, 0x96, 0xb4, 0xb4, 0xb4, 0xb4, 0xb4,
0xb4, 0xb4, 0xb4, 0xb4, 0xb4, 0xb4, 0xb4, 0x71,
0xb4, 0xb4, 0xfa, 0xfa, 0xfa, 0xfa, 0xfa, 0x3a,
0x96, 0x96, 0xb4, 0xb4, 0xfa, 0x94, 0x94, 0x61,
0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0xfa
};
CHECK_THROWS_AS(json::from_cbor(vec1), std::out_of_range);
// related test case: double-precision
std::vector<uint8_t> vec2
{
0x94, 0xfa, 0xfa, 0xfa, 0xfa, 0xfa, 0xfa, 0xfa,
0x3a, 0x96, 0x96, 0xb4, 0xb4, 0xb4, 0xb4, 0xb4,
0xb4, 0xb4, 0xb4, 0xb4, 0xb4, 0xb4, 0xb4, 0x71,
0xb4, 0xb4, 0xfa, 0xfa, 0xfa, 0xfa, 0xfa, 0x3a,
0x96, 0x96, 0xb4, 0xb4, 0xfa, 0x94, 0x94, 0x61,
0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0x61, 0xfb
};
CHECK_THROWS_AS(json::from_cbor(vec2), std::out_of_range);
}
}