Illegal Exception 4, when compiling a C program (raylib + lua)

Question

So, I have a program that will draw a window with some text and a background using raylib, and I'm trying to bind a C function to Lua, so that a user can change the title within a 'config.lua' script. The program compiles, but when I try to run, I get this error: Illegal exception 4.

#include <stdio.h>
#include <raylib.h>
#include <lua/lauxlib.h>
#include <lua/lua.h>
#include <lua/luaconf.h>
#include <lua/lualib.h>
#include <string.h>

int windowHeight = 460;
int windowWidth = 800;
char windowTitle[] = "my game";

int setTitle(char title[]) {
    //this is unsafe, use strcpy_s instead
    strcpy(windowTitle, title);
    //if (strcpy_s(windowTitle, sizeof(windowTitle), windowTitle) != 0) {
    //    return 1;
    //}
    return 0;
}

static int lua_setTitle(lua_State *L) {
    const char *new_title = luaL_checkstring(L, 1);
    setTitle(new_title);
    return 0;
}


int main() {
    
    lua_State *L = luaL_newstate();

    // push funcs to lua globally
    lua_pushcfunction(L, lua_setTitle);
    lua_setglobal(L, "settitle");
    // load Lua file, be sure to load the file AFTER pushing the C functions to lua
    // check if file is actually loaded
    if (luaL_dofile(L, "src/config.lua") != 0) {
        printf("could not find, or load config file! \n");
        printf("error info: %s\n", lua_tostring(L, -1));
        lua_pop(L, 1);
        return 1;
    }

    InitWindow(windowWidth, windowHeight, windowTitle);

    while (!WindowShouldClose())
    {
        BeginDrawing();
            ClearBackground(RAYWHITE);
            DrawText("Congrats! You created your first window!", 190, 200, 20, LIGHTGRAY);
        EndDrawing();
    }

    lua_close(L);
    CloseWindow();
    return 0;
}

Here is my makefile (I'm on MacOS big sur btw)

game:
    clang -framework CoreVideo -framework IOKit -framework Cocoa -framework GLUT -framework OpenGL lib/libraylib.a lib/liblua.a src/main.c -o main

And here is my config.lua script:

settitle('water')

What does Illegal Exception 4 even mean? and how can I fix this? Any help is greatly appreciated.

Illegal Exception 4, when compiling a C program (raylib + lua)

0 Answers0