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#include "lua-5.4.8/src/lua.h"
#include "lua-5.4.8/src/lualib.h"
#include "lua-5.4.8/src/lauxlib.h"
#include "hi.h"
static int l_sum(lua_State *L) {
double a = luaL_checknumber(L, 1);
double b = luaL_checknumber(L, 2);
lua_pushnumber(L, a + b);
return 1;
}
int main(void) {
lua_State *L = luaL_newstate();
luaL_openlibs(L);
// You do not need to prefix name of the function with `c_`. I did it to
// make it clear in the lua script code that this is a custom function.
lua_register(L, "c_sum", l_sum);
// Not wise since this is not a null-terminated string.
/* luaL_dostring(L, (const char*)hi); */
// https://www.lua.org/manual/5.4/manual.html#luaL_loadbuffer
// Load Lua chunk from `hi` buffer.
if (luaL_loadbuffer(L, (const char*)hi, hi_len, "hi_chunk") != LUA_OK) {
fprintf(stderr, "Load error: %s\n", lua_tostring(L, -1));
lua_pop(L, 1);
} else {
// Execute the chunk.
if (lua_pcall(L, 0, 0, 0) != LUA_OK) {
fprintf(stderr, "Runtime error: %s\n", lua_tostring(L, -1));
lua_pop(L, 1);
}
}
lua_close(L);
return 0;
}
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