JSON for Modern C++  2.0.0
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 = int64_t, class NumberUnsignedType = uint64_t, class NumberFloatType = double, template< typename U > class AllocatorType = std::allocator>
template<typename T , typename std::enable_if< not(std::is_same< T, int >::value) and std::is_same< T, number_integer_t >::value , int >::type = 0>
nlohmann::basic_json::basic_json ( const number_integer_t  val)
inlinenoexcept

Create an integer number JSON value with a given content.

Template Parameters
TA helper type to remove this function via SFINAE in case number_integer_t is the same as int. In this case, this constructor would have the same signature as basic_json(const int value). Note the helper type T is not visible in this constructor's interface.
Parameters
[in]valan integer to create a JSON number from
Complexity
Constant.
Example
The example below shows the construction of an integer number value.
1 #include <json.hpp>
2 
3 using json = nlohmann::json;
4 
5 int main()
6 {
7  // create a JSON number from number_integer_t
8  json::number_integer_t value = 42;
9 
10  json j(value);
11 
12  // serialize the JSON numbers
13  std::cout << j << '\n';
14 }
basic_json<> json
default JSON class
Definition: json.hpp:8653
NumberIntegerType number_integer_t
a type for a number (integer)
Definition: json.hpp:505
Output (play with this example online):
42
The example code above can be translated with
g++ -std=c++11 -Isrc doc/examples/basic_json__number_integer_t.cpp -o basic_json__number_integer_t 
See also
basic_json(const int) – create a number value (integer)
basic_json(const CompatibleNumberIntegerType) – create a number value (integer) from a compatible number type
Since
version 1.0.0

Definition at line 1244 of file json.hpp.