Home > Lua Error > Lua Error Handling C

Lua Error Handling C


None of the type enquiry functions -- lua_is*, lua_type and lua_typename -- will ever throw an error, and neither will the functions which set/get metatables and environments. c++ error-handling lua share|improve this question edited Nov 24 '12 at 14:59 prapin 2,86511029 asked Nov 24 '12 at 12:38 Freakyy 6510 What precisely is output by the code? This automates the task of wrapping the enclosed C++ function in a try/catch block. The C API Chapter 24. check over here

The level argument specifies how to get the error position. Takagi looked like? Vim: what are all the possible swapfile extensions? The first return value is always a boolean, indicating whether the function call is successful (i.e. Clicking Here


Join them; it only takes a minute: Sign up Lua Catching Exceptions up vote 0 down vote favorite I am coding in Lua (and C++). Is space piracy orbitally practical? After lua_atpanic did not work correctly (program exited anyway).

How to use breakpoints for debugging What if passport is lost and home country has no diplomatic presence? return 0; } void Foo(lua_State *lua) { lua_pushcfunction(lua, &MyFunction); int result = lua_pcall(lua, 0, 0, 0); // ... } Discussion: Imagine that the lua_call above (in MyFunction) results in a Lua Why is water-contaminated fuel bad, but water-injection is not? Lua Error Function A pointer to the struct is passed as the sole Lua argument; this allows you to read from and/or write to the struct from within the "run" method.

The values you yield in coroutine body is gonna be returned following the boolean flag. Lual_error Do I have to supply that or does Lua allocate a buffer? I think (I'm not a Lua expert) you are supposed to use LUAI_TRY macro. If you are new to Lua, you might want to read Pragmatic Lua Basics in 30 Minutes first.

I will show you some relevant code in pictures. Lua Throw Exception Is it worth sending a manned mission to a black hole? Return the result. asked 4 years ago viewed 2110 times active 4 years ago Blog How Do Software Developers in New York, San Francisco, London and Bangalore… Related 3Can't call member function from c++/lua


API functions which push complex objects (strings, tables, closures, threads, full userdata) may throw a memory error. try this That’s why to achieve currency, you have to make your code non-blocking. Lua_error I already implemented the LUA Api and everything is working fine, beside the error handling. Lua C Error A simple example to show run time error is shown below.

This is defined in the Lua core header lstate.h. What does Knights do? An Overview of the C API 24.3 – Error Handling with the C API Unlike C++ or Java, the C language does not offer an exception handling mechanism. However, coroutine is not real multi-threading in the sense that any blocking code will block the whole program, while in multi-threading it only blocks that thread. Lua_cpcall

Then you should create the object which may need to be freed and put it in the userdata. a longjmp if Lua is compiled in C. The return value of the original function will be returned following this boolean flag. this content lua_rawset and lua_rawseti may throw an out of memory error.

Pcall *p = static_cast(lua_touserdata(lua, 1)); // Get the global "EXAMPLE" and store it in the Pcall struct. Lua Pcall Example How to set up love interests for player characters What type of architecture would an arachnid /crustacean likely to have? For example, we might be working with an external Lua library that has already been compiled as C, or we might want to disable C++ exception handling for performance reasons.

Our merchants keep turning into villains!

Can someone take my Wi-Fi signal DOWN? Therefore, it can be useful to make the lua_CFunction local to the calling function (like a closure). Why are the railings in Rivendell so low? Lua Error Wow Why is Cuba still leasing Guantanamo Bay to the US?

So please correct me for any mistakes and join further discussions on HN. If some error occurs in function f, it does not throw an error. This is a runtime error, which had occurred due to not passing two variables. have a peek at these guys It has 7-pointed leaves How could a smaller country successfully take control of a much larger country?

What do I do if somebody asks me to join his accusation of my colleague of academic misconduct?