You can change the environment of a Lua function or the running thread by calling setfenv. Once you are comfortable with the Arduino software and using the built-in functions, you may want to extend the ability of your Arduino with additional libraries.
Return to top of page Confidentiality Library manual Privacy 1. A local variable used by an inner function is called an upvalue, or external local variable, inside the inner function.
Code samples Library manual the guide are released into the public domain. All API functions and related types and constants are declared in the header file lua. A field in the form x y means the function can push or pop x or y elements, depending on the situation; an interrogation mark '.
Values smaller than mean the collector will not wait to start a new cycle. Arduino libraries are managed in three different places: This is why we recommend that you only install libraries to the sketchbook folder so they are not deleted during the Arduino IDE update process. A vararg function does not adjust its argument list; instead, it collects all extra arguments and supplies them to the Library manual through a vararg expression, which is also written as three dots.
You create a coroutine with a call to coroutine. The documentation for each function indicates whether it can throw errors. Each of these closures uses a different y variable, while all of them share the same x.
A weak table can have weak keys, weak values, or both. To share knowledge, experience, and expertise with others. You create a coroutine with a call to coroutine. When Lua pre-compiles a chunk, all its function bodies are pre-compiled too. It uses two numbers to control its garbage-collection cycles: To use care and discretion to distinguish between private actions and speech, and those actions and speech which are taken in the name of the institution.
A metamethod only is selected when both objects being compared have the same type and the same metamethod for the selected operation.
Because of the lexical scoping rules, local variables can be freely accessed by functions defined inside their scope. Copyright Law gives the copyright owner the exclusive right to reproduce, distribute, modify, and publicly display the works.
The value of this expression is a list of all actual extra arguments, similar to a function with multiple results. The acquisition of such materials does not imply approval or endorsement of their contents.
In the first case, coroutine. The title and author of the item, the reason for the rush request, and the requester's name and telephone number should all be noted.
It is possible to reproduce a copy of a published work for the purpose of replacement of material that is damaged, deteriorating, lost or stolen if it has been owned by the Library and after a reasonable effort has been made to obtain a duplicate copy if a replacement copy cannot be obtained at a fair price.
The scope of variables begins at the first statement after their declaration and lasts until the end of the innermost block that includes the declaration. In this example we will install the Bridge library.
Each of these closures uses a different y variable, while all of them share the same x. Its sole argument is a function that is the main function of the coroutine. After the coroutine starts running, it runs until it terminates or yields.
The garbage-collector pause controls how long the collector waits before starting a new cycle. Cross-training will be encouraged for all staff, but will remain voluntary 2.
If so, the value associated with that key the metamethod controls how Lua will perform the operation. Larger values make the collector less aggressive. If control reaches the end of a function without encountering a return statement, then the function returns with no results.
A coroutine can terminate its execution in two ways: The function getbinhandler below defines how Lua chooses a handler for a binary operation. DESIGN DETAILS LIBRARY The information contained in the Design Details Library is designed to rapidly and conveniently equate the engineer and architect alike with the product attributes of the.
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