The warning below is generated when compiling with icc. I realise this is likely the compiler's fault, but perhaps there is a workaround which would make it work.
edit Actually Intel seem to think it's a valid warning: https://software.intel.com/en-us/forums/intel-c-compiler/topic/596393
nlohmann-json/json/json.hpp(9024): error #597: "nlohmann::basic_json<ObjectType, ArrayType, StringType, BooleanType, NumberIntegerType, NumberUnsignedType, NumberFloatType, AllocatorType, JSONSerializer>::iter_impl::operator nlohmann::basic_json<std::map, std::vector, std::string, bool, int64_t={long}, uint64_t={unsigned long}, double, std::allocator, nlohmann::adl_serializer>::iter_impl<const nlohmann::basic_json<std::map, std::vector, std::string, bool,
int64_t={long}, uint64_t={unsigned long}, double, std::allocator, nlohmann::adl_serializer>>() const [with ObjectType=std::map, ArrayType=std::vector, StringType=std::string, BooleanType=bool, NumberIntegerType=int64_t={long}, NumberUnsignedType=uint64_t={unsigned long}, NumberFloatType=double, AllocatorType=std::allocator, JSONSerializer=nlohmann::adl_serializer, U=const nlohmann::basic_json<std::map, std::vector, std::string, bool, int64_t={long}, uint64_t={unsigned long}, double,
std::allocator, nlohmann::adl_serializer>]" will not be called for implicit or explicit conversions
operator const_iterator() const
^
detected during instantiation of class "nlohmann::basic_json<ObjectType, ArrayType, StringType, BooleanType, NumberIntegerType, NumberUnsignedType, NumberFloatType, AllocatorType, JSONSerializer>::iter_impl [with ObjectType=std::map, ArrayType=std::vector, StringType=std::string, BooleanType=bool, NumberIntegerType=int64_t={long}, NumberUnsignedType=uint64_t={unsigned long}, NumberFloatType=double, AllocatorType=std::allocator, JSONSerializer=nlohmann::adl_serializer, U=const
nlohmann::basic_json<std::map, std::vector, std::string, bool, int64_t={long}, uint64_t={unsigned long}, double, std::allocator, nlohmann::adl_serializer>]"
The warning below is generated when compiling with icc. I realise this is likely the compiler's fault, but perhaps there is a workaround which would make it work.
edit Actually Intel seem to think it's a valid warning: https://software.intel.com/en-us/forums/intel-c-compiler/topic/596393
nlohmann-json/json/json.hpp(9024): error #597: "nlohmann::basic_json<ObjectType, ArrayType, StringType, BooleanType, NumberIntegerType, NumberUnsignedType, NumberFloatType, AllocatorType, JSONSerializer>::iter_impl::operator nlohmann::basic_json<std::map, std::vector, std::string, bool, int64_t={long}, uint64_t={unsigned long}, double, std::allocator, nlohmann::adl_serializer>::iter_impl<const nlohmann::basic_json<std::map, std::vector, std::string, bool,
int64_t={long}, uint64_t={unsigned long}, double, std::allocator, nlohmann::adl_serializer>>() const [with ObjectType=std::map, ArrayType=std::vector, StringType=std::string, BooleanType=bool, NumberIntegerType=int64_t={long}, NumberUnsignedType=uint64_t={unsigned long}, NumberFloatType=double, AllocatorType=std::allocator, JSONSerializer=nlohmann::adl_serializer, U=const nlohmann::basic_json<std::map, std::vector, std::string, bool, int64_t={long}, uint64_t={unsigned long}, double,
std::allocator, nlohmann::adl_serializer>]" will not be called for implicit or explicit conversions
operator const_iterator() const
^
detected during instantiation of class "nlohmann::basic_json<ObjectType, ArrayType, StringType, BooleanType, NumberIntegerType, NumberUnsignedType, NumberFloatType, AllocatorType, JSONSerializer>::iter_impl [with ObjectType=std::map, ArrayType=std::vector, StringType=std::string, BooleanType=bool, NumberIntegerType=int64_t={long}, NumberUnsignedType=uint64_t={unsigned long}, NumberFloatType=double, AllocatorType=std::allocator, JSONSerializer=nlohmann::adl_serializer, U=const
nlohmann::basic_json<std::map, std::vector, std::string, bool, int64_t={long}, uint64_t={unsigned long}, double, std::allocator, nlohmann::adl_serializer>]"