tools/macro_builder/main.cpp · Gesperrt/json

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json

tools

macro_builder

main.cpp

main.cpp 1.24 KB

#include <cstdlib>
#include <iostream>
#include <sstream>

using namespace std;

void build_code(int max_args)
{
 stringstream ss;
 ss << "#define NLOHMANN_JSON_EXPAND( x ) x" << endl;
 ss << "#define NLOHMANN_JSON_GET_MACRO(";
 for (int i = 0 ; i < max_args ; i++)
 ss << "_" << i + 1 << ", ";
 ss << "NAME,...) NAME" << endl;
 
 ss << "#define NLOHMANN_JSON_PASTE(...) NLOHMANN_JSON_EXPAND(NLOHMANN_JSON_GET_MACRO(__VA_ARGS__, \\" << endl;
 for (int i = max_args ; i > 1 ; i--)
 ss << "NLOHMANN_JSON_PASTE" << i << ", \\" << endl;
 ss << "NLOHMANN_JSON_PASTE1)(__VA_ARGS__))" << endl;
 
 ss << "#define NLOHMANN_JSON_PASTE2(func, v1) func(v1)" << endl;
 for (int i = 3 ; i <= max_args ; i++)
 {
 ss << "#define NLOHMANN_JSON_PASTE" << i << "(func, "; 
 for (int j = 1 ; j < i -1 ; j++)
 ss << "v" << j << ", "; 
 ss << "v" << i-1 << ") NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE" << i-1 << "(func, ";
 for (int j = 2 ; j < i-1 ; j++)
 ss << "v" << j << ", ";
 ss << "v" << i-1 << ")" << endl;
 }
 
 cout << ss.str() << endl;
}

int main(int argc, char** argv) 
{
 int max_args = 64;
 build_code(max_args);
 
 return 0;
}

一键复制编辑原始数据按行查看历史

Niels Lohmann 提交于 2022年05月01日 15:41 +08:00 . Reorganize directories (#3462)

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43

#include <cstdlib>
#include <iostream>
#include <sstream>

using namespace std;

void build_code(int max_args)
{
 stringstream ss;
 ss << "#define NLOHMANN_JSON_EXPAND( x ) x" << endl;
 ss << "#define NLOHMANN_JSON_GET_MACRO(";
 for (int i = 0 ; i < max_args ; i++)
 ss << "_" << i + 1 << ", ";
 ss << "NAME,...) NAME" << endl;
 
 ss << "#define NLOHMANN_JSON_PASTE(...) NLOHMANN_JSON_EXPAND(NLOHMANN_JSON_GET_MACRO(__VA_ARGS__, \\" << endl;
 for (int i = max_args ; i > 1 ; i--)
 ss << "NLOHMANN_JSON_PASTE" << i << ", \\" << endl;
 ss << "NLOHMANN_JSON_PASTE1)(__VA_ARGS__))" << endl;
 
 ss << "#define NLOHMANN_JSON_PASTE2(func, v1) func(v1)" << endl;
 for (int i = 3 ; i <= max_args ; i++)
 {
 ss << "#define NLOHMANN_JSON_PASTE" << i << "(func, "; 
 for (int j = 1 ; j < i -1 ; j++)
 ss << "v" << j << ", "; 
 ss << "v" << i-1 << ") NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE" << i-1 << "(func, ";
 for (int j = 2 ; j < i-1 ; j++)
 ss << "v" << j << ", ";
 ss << "v" << i-1 << ")" << endl;
 }
 
 cout << ss.str() << endl;
}

int main(int argc, char** argv) 
{
 int max_args = 64;
 build_code(max_args);
 
 return 0;
}