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Joey Mukherjee kirjoitti 31.7.2008 kello 22:55:

Is there a way from the C API to determine if a Lua function is defined?

If a Lua function is defined, I wish to call it, otherwise I want to default to some other behavior, but it is not really an error.

How would I do something like this? From lua_pcall, I get a return value of 2 but is this defined somewhere? Should I just check for that value or is there a preferred constant?