is_primitive()

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>>

constexpr bool nlohmann::basic_json< ObjectType, ArrayType, StringType, BooleanType, NumberIntegerType, NumberUnsignedType, NumberFloatType, AllocatorType, JSONSerializer, BinaryType >::is_primitive ( ) const

inlineconstexprnoexcept

return whether type is primitive

This function returns true if and only if the JSON type is primitive (string, number, boolean, or null).

Returns

true if type is primitive (string, number, boolean, or null), false otherwise.

@complexity Constant.

@exceptionsafety No-throw guarantee: this member function never throws exceptions.

@liveexample{The following code exemplifies is_primitive() for all JSON types.,is_primitive}

See also

see is_structured() – returns whether JSON value is structured

see is_null() – returns whether JSON value is null

see is_string() – returns whether JSON value is a string

see is_boolean() – returns whether JSON value is a boolean

see is_number() – returns whether JSON value is a number

see is_binary() – returns whether JSON value is a binary array

Since

version 1.0.0

Definition at line 20202 of file json.hpp.

    {
        return is_null() || is_string() || is_boolean() || is_number() || is_binary();
    }