AuroraMiddleware/nlohmannjson
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Code Issues Releases Wiki Activity

do not const_cast when calling get_ptr

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Théo DELRIEU 2017-01-09 10:22:22 +01:00
parent 3494014ba0
commit cb3d455bd2
1 changed files with 11 additions and 11 deletions
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22
src/json.hpp
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@ -494,11 +494,11 @@ template <typename Json, typename ArithmeticType,
void get_arithmetic_value(Json const &j, ArithmeticType &val)
{
if (j.is_number_integer())
val = *const_cast<Json&>(j).template get_ptr<typename Json::number_integer_t*>();
val = *j.template get_ptr<const typename Json::number_integer_t*>();
else if (j.is_number_unsigned())
val = *const_cast<Json&>(j).template get_ptr<typename Json::number_unsigned_t*>();
val = *j.template get_ptr<const typename Json::number_unsigned_t*>();
else if (j.is_number_float())
val = *const_cast<Json&>(j).template get_ptr<typename Json::number_float_t*>();
val = *j.template get_ptr<const typename Json::number_float_t*>();
else
throw std::domain_error("type must be number, but is " + type_name(j));
}
@ -578,7 +578,7 @@ void from_json(Json const& j, typename Json::boolean_t& b)
{
if (!j.is_boolean())
throw std::domain_error("type must be boolean, but is " + type_name(j));
b = *const_cast<Json&>(j).template get_ptr<typename Json::boolean_t*>();
b = *j.template get_ptr<const typename Json::boolean_t*>();
}
template <typename Json>
@ -586,7 +586,7 @@ void from_json(Json const& j, typename Json::string_t& s)
{
if (!j.is_string())
throw std::domain_error("type must be string, but is " + type_name(j));
s = *const_cast<Json&>(j).template get_ptr<typename Json::string_t*>();
s = *j.template get_ptr<const typename Json::string_t*>();
}
template <typename Json>
@ -621,7 +621,7 @@ void from_json(Json const &j, typename Json::array_t &arr)
{
if (!j.is_array())
throw std::domain_error("type must be array, but is " + type_name(j));
arr = *const_cast<Json&>(j).template get_ptr<typename Json::array_t*>();
arr = *j.template get_ptr<const typename Json::array_t*>();
}
// forward_list doesn't have an insert method, TODO find a way to avoid including forward_list
@ -679,7 +679,7 @@ void from_json(Json const &j, CompatibleObjectType &obj)
if (!j.is_object())
throw std::domain_error("type must be object, but is " + type_name(j));
auto inner_object = const_cast<Json&>(j).template get_ptr<typename Json::object_t*>();
auto inner_object = j.template get_ptr<const typename Json::object_t*>();
using std::begin;
using std::end;
// we could avoid the assignment, but this might require a for loop, which
@ -703,13 +703,13 @@ template <
void from_json(Json const &j, ArithmeticType &val)
{
if (j.is_number_integer())
val = *const_cast<Json&>(j).template get_ptr<typename Json::number_integer_t*>();
val = *j.template get_ptr<const typename Json::number_integer_t*>();
else if (j.is_number_unsigned())
val = *const_cast<Json&>(j).template get_ptr<typename Json::number_unsigned_t*>();
val = *j.template get_ptr<const typename Json::number_unsigned_t*>();
else if (j.is_number_float())
val = *const_cast<Json&>(j).template get_ptr<typename Json::number_float_t*>();
val = *j.template get_ptr<const typename Json::number_float_t*>();
else if (j.is_boolean())
val = *const_cast<Json&>(j).template get_ptr<typename Json::boolean_t*>();
val = *j.template get_ptr<const typename Json::boolean_t*>();
else
throw std::domain_error("type must be number, but is " + type_name(j));
}