48 lines
1.0 KiB
C++
48 lines
1.0 KiB
C++
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#define SOL_ALL_SAFETIES_ON 1
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#include <sol/sol.hpp>
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#include <unordered_set>
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#include <iostream>
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int main() {
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struct hasher {
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typedef std::pair<std::string, std::string>
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argument_type;
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typedef std::size_t result_type;
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result_type operator()(const argument_type& p) const {
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return std::hash<std::string>()(p.first);
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}
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};
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using my_set = std::unordered_set<
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std::pair<std::string, std::string>,
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hasher>;
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std::cout << "=== containers with std::pair<> ==="
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<< std::endl;
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sol::state lua;
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lua.open_libraries(sol::lib::base);
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lua.set_function("f", []() {
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return my_set { { "key1", "value1" },
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{ "key2", "value2" },
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{ "key3", "value3" } };
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});
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lua.safe_script("v = f()");
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lua.safe_script("print('v:', v)");
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lua.safe_script("print('#v:', #v)");
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// note that using my_obj:pairs() is a
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// way around pairs(my_obj) not working in Lua 5.1/LuaJIT:
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// try it!
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lua.safe_script(
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"for k,v1,v2 in v:pairs() do print(k, v1, v2) end");
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std::cout << std::endl;
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return 0;
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}
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