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#define SOL_ALL_SAFETIES_ON 1
#include <sol/sol.hpp>
int main(int, char*[]) {
sol::state lua;
lua.open_libraries(sol::lib::base);
lua.script("function f (a, b, c, d) return 1 end");
lua.script("function g (a, b) return a + b end");
// sol::function is often easier:
// takes a variable number/types of arguments...
sol::function fx = lua["f"];
// fixed signature std::function<...>
// can be used to tie a sol::function down
std::function<int(int, double, int, std::string)> stdfx
= fx;
int is_one = stdfx(1, 34.5, 3, "bark");
SOL_ASSERT(is_one == 1);
int is_also_one = fx(1, "boop", 3, "bark");
SOL_ASSERT(is_also_one == 1);
// call through operator[]
int is_three = lua["g"](1, 2);
SOL_ASSERT(is_three == 3);
double is_4_8 = lua["g"](2.4, 2.4);
SOL_ASSERT(is_4_8 == 4.8);
return 0;
}
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