I've tried to compile the following code
#include "json.hpp"
#include <iostream>
using json = nlohmann::json;
int main()
{
json j;
j["success"] = false;
std::cout << j.dump(4) << std::endl;
return 0;
}with g++ 4.9.3 on cygwin 64-bit (I'm using Windows 10)
$ g++ --version
g++ (GCC) 4.9.3
Copyright (C) 2015 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
This is the compiler output
$ g++ main.cpp -std=c++11 -o main
In file included from main.cpp:1:0:
json.hpp: In member function ‘std::string nlohmann::basic_json<ObjectType, ArrayType, StringType, BooleanType, NumberIntegerType, NumberFloatType, AllocatorType>::iterator_wrapper::iterator_wrapper_internal::calculate_key()’:
json.hpp:5725:32: error: ‘to_string’ is not a member of ‘std’
return std::to_string(array_index);
^
json.hpp: In member function ‘long double nlohmann::basic_json<ObjectType, ArrayType, StringType, BooleanType, NumberIntegerType, NumberFloatType, AllocatorType>::lexer::get_number() const’:
json.hpp:6940:36: error: ‘strtold’ is not a member of ‘std’
const auto float_val = std::strtold(reinterpret_cast<typename string_t::const_pointer>(m_start),
^
json.hpp:6940:36: note: suggested alternative:
In file included from /usr/lib/gcc/x86_64-pc-cygwin/4.9.3/include/c++/cstdlib:72:0,
from /usr/lib/gcc/x86_64-pc-cygwin/4.9.3/include/c++/bits/stl_algo.h:59,
from /usr/lib/gcc/x86_64-pc-cygwin/4.9.3/include/c++/algorithm:62,
from json.hpp:41,
from main.cpp:1:
/usr/include/stdlib.h:279:20: note: ‘strtold’
extern long double strtold (const char *__restrict, char **__restrict);
I've tried to compile the following code
with g++ 4.9.3 on cygwin 64-bit (I'm using Windows 10)
This is the compiler output