insert() [5/6]

template<template< typename U, typename V, typename... Args > class ObjectType = std::map, template< typename U, typename... Args > class ArrayType = std::vector, class StringType = std::string, class BooleanType = bool, class NumberIntegerType = std::int64_t, class NumberUnsignedType = std::uint64_t, class NumberFloatType = double, template< typename U > class AllocatorType = std::allocator, template< typename T, typename SFINAE=void > class JSONSerializer = adl_serializer, class BinaryType = std::vector<std::uint8_t>>

iterator nlohmann::basic_json< ObjectType, ArrayType, StringType, BooleanType, NumberIntegerType, NumberUnsignedType, NumberFloatType, AllocatorType, JSONSerializer, BinaryType >::insert ( const_iterator  pos, initializer_list_t  ilist  )

inline

inserts elements

Inserts elements from initializer list ilist before iterator pos.

Parameters

[in]	pos	iterator before which the content will be inserted; may be the end() iterator
[in]	ilist	initializer list to insert the values from

Exceptions

type_error.309	if called on JSON values other than arrays; example: "cannot use insert() with string"
invalid_iterator.202	if pos is not an iterator of *this; example: "iterator does not fit current value"

Returns

iterator pointing to the first element inserted, or pos if ilist is empty

@complexity Linear in ilist.size() plus linear in the distance between pos and end of the container.

@liveexample{The example shows how insert() is used.,insert__ilist}

Since

version 1.0.0

Definition at line 23610 of file json.hpp.

    {
        // insert only works for arrays
        if (JSON_HEDLEY_UNLIKELY(!is_array()))
        {
            JSON_THROW(type_error::create(309, "cannot use insert() with " + std::string(type_name()), *this));
        }
 
        // check if iterator pos fits to this JSON value
        if (JSON_HEDLEY_UNLIKELY(pos.m_object != this))
        {
            JSON_THROW(invalid_iterator::create(202, "iterator does not fit current value", *this));
        }
 
        // insert to array and return iterator
        return insert_iterator(pos, ilist.begin(), ilist.end());
    }