Java Utility class - flexible replacement for array. This sample from caronalabs.com forums shows how you might draw an arc, which provides the discrete algorithm you would need to do what you're asking: function display.newArc(group, x,y,w,h,s,e,rot) local theArc = display.newGroup() local xc,yc,xt,yt,cos,sin = 0,0,0,0,math.cos,math.sin --w/2,h/2,0,0,math.cos,math.sin s,e = s or 0, e or 360 s,e = math.rad(s),math.rad(e) w,h =... You should push 1 and 2 on to the stack (or 0,1 if tables are 0indexed) and use lua_geti instead of iterating over the table with lua_next. its return list is adjusted to zero elements, thus discarding all Templates in C++ - defining a family pattern of methods / functions, List slices in Python - 2 and 3 values forms, with an uplifting example, Passing parameters to Python functions - the options you have, Multiple inputs, multiple out, ruby functions, How to return 2 values from a function (C++ and C) - more uses of pointers, Using functions to keep look and feel apart from calculations - simple C example, Extra courses - Advanced PHP, MySQL and Lua, Returning multiple values from a function call in various languages - a comparison. Torch Lua: Why is my gradient descent not optimizing the error? Thanks for contributing an answer to Stack Overflow! function,lua,byte,equals. How can I convert a character code to a string character in Lua? Convolution Neural Network in torch. Modern IDEs are magic. This returns two values, which I know to be width,height. It returns two indices: the index of the character where the pattern match starts and the one where it ends (or nil if it cannot find the pattern). [trainee@easterton u106]$ lua rmv multiple returns 9 -1 20 0.8 collecting one or fewer values 9 15 -3 value list returns all values for last or only in list 11 -1 30 0.83333333333333 first ONLY returned for earlier items in list 11 Robin Hood 2 11 15 3 54 1.5 [trainee@easterton u106]$]] This modified text is an extract of the original Stack Overflow Documentation created by following. Error when training the network. Since MyClass is just a lookup in the global table (_G), you could mess with its metatable's __index to return a newly-defined MyClass object (which you would later need to fill with the details). Has there been a naval battle where a boarding attempt backfired? If you're used to a language (like Python) that returns multiple values by storing them in a "tuple" type, that's not how Lua works. 2. Coroutines in Lua. I am trying to use this code for my own purposes. But in Lua, you can truly return multiple values: Associated topics are indexed as below, or enter http://melksh.am/nnnn for individual articles, Training, Open Source Programming Languages, http://www.wellho.net/mouth/2723_Ret ... n-Lua.html, Special Tcl, Expect, Tk subjects / courses, Escapee Grandparents welcome - Henfield and Melksham, Making a Lua program run more than 10 times faster. Using == for functions only checks if they reference to the same function, which is not what you expected. Lua functions actually return separate values, instead of a single container. function,lua,byte,equals. It returns R,G,B values. training module. Or use tables as suggested by Egor's comment. Stack Overflow for Teams is a private, secure spot for you and Why is "hand recount" better than "computer rescan"? When a function returns multiple values, how can I use each value individually? This task is rather difficult, if not impossible at all. What circumstances could lead to city layout based on hexagons? How do I set one up? the expression is enclosed in parentheses). (2) It is possible to create a Lua module which returns multiple results via the require function? Lua functions can return multiple values, and the language will natively assign them to the variables on the other side of the equal sign. Here are all the parts of a method − 1. How do I use them? Returning guests - a sign of a good product. This task is rather difficult, if not impossible at all. Sorting 2D boxes into larger boxes to fill in the most efficient and complete manner, Erlang spawning large amounts of C processes, storyboard.removeScene(“scene name”) is not working. other closely related examples on the. Does a for loop evaluate its end condition once, or on every iteration? Multiple identical keys in a Python dict - yes, you can! local a, b = (function() return 1,2 end)() print(a,b) => 1 2 That's fine, but when things get a bit more tricky is when the values are not returned in tail call position. I still have to read the entire docs, but already found this: There are 16384 hash slots in Redis Cluster, and to compute what is the hash slot of a given key, we simply take the CRC16 of the key modulo 16384. I have written a test utility function aequals (assert equals) that expects an actual result and an expected result as arguments. This functions always returns 1 as number of returned values on stack. Podcast 285: Turning your coding career into an RPG, Creating new Help Center documents for Review queues: Project overview, Feature Preview: New Review Suspensions Mod UX, Review queue Help Center draft: Triage queue, How to check if two tables(objects) have the same value in Lua. but this gives a syntax error, because stuff returns a tuple, not an array/table. For example: function triple(x) return x, x, x end When calling a function, to save these values, you must use the following syntax: local a, b, c = triple(5) Which will result in a = b = c = 5 in this case. I would like named (string) keys. element of a list of expressions, then no adjustment is made (unless In all other contexts, Lua String formatting in Lua - string.format as a wrapper for sprintf.

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