sol2/examples/source/variadic_args_shifted.cpp

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#define SOL_ALL_SAFETIES_ON 1
#include <sol/sol.hpp>
#include <iostream>
int main() {
std::cout << "=== variadic_args shifting constructor ==="
<< std::endl;
sol::state lua;
lua.open_libraries(sol::lib::base);
lua.set_function("f", [](sol::variadic_args va) {
int r = 0;
sol::variadic_args shifted_va(va.lua_state(), 3);
for (auto v : shifted_va) {
int value = v;
r += value;
}
return r;
});
lua.script("x = f(1, 2, 3, 4)");
lua.script("x2 = f(8, 200, 3, 4)");
lua.script("x3 = f(1, 2, 3, 4, 5, 6)");
lua.script("print(x)"); // 7
lua.script("print(x2)"); // 7
lua.script("print(x3)"); // 18
std::cout << std::endl;
return 0;
}