5 min

Cvs Laughlin
C# Vs Lua
Lua C Roblox
Circuitpython Vs Arduino
Cvs Laureldale

C (programming language) VS Lua Feature comparision. C (programming language) Lua. Compiled Language. Inline assembly. Manual memory management.

This article is a general overview of the Lua programming language and how its syntax compares to C#.

1: The Lua Sources. 2: A C compiler - cc/gcc/g for Unix, and Visual C for Windows. Other compilers should under Windows, basically any C compiler - I will cover compiling under Windows at the end of the toturial. This tutorial will work under any OS which has a C compiler, and which Lua has compiled succesfully on. Now, I have encapsulated the luaState into a C class ScriptEngine, which provides thread safe calls to run and kill scripts, and there's a 1-1 relationship between ScriptEngine and luaState. Void ScriptEngine::hook(luaState. L, luaDebug.ar). C and Lua work very well together. Using Lua you can create modifiable programs by embedding it into your C program. In this video I take an introductory.

General Differences

Comments

Lua

C#

Strings

Lua

C#

Conditional Operators

Lua	C#
Equal To
Greater Than	`>`	`>`
Less Than	`<`	`<`
Greater Than or Equal To	`>=`	`>=`
Less Than or Equal To	`<=`	`<=`
Not Equal To	`~=`	`!=`
And	`and`	`&&`
Or	`or`	`\|\|`

Arithmetic Operators

Lua	C#
Addition	`+`	`+`
Subtraction	`-`	`-`
Multiplication	`*`	`*`
Division	`/`	`/`
Modulus	`%`	`%`
Exponentiation	`^`	`**`

Reserved Keywords

Below are Lua’s reserved keywords mapped to their C# equivalent. Not all C# keywords are shown.

Lua	C#
`and`
`break`	`break`
`do`	`do`
`if`	`if`
`else`	`else`
`elseif`	`else if`
`then`
`end`
`true`	`true`
`false`	`false`
`for`	`for` / `foreach`
`function`
`in`	`in`
`local`
`nil`	`null`
`not`
`or`
`repeat`
`return`	`return`
`until`
`while`	`while`

Line Endings

Semicolons are not required in Lua, but they will work if used in your code.

Scoping

In Lua, variables and logic can be written in a tighter scope than their function or class by nesting the logic within do and end keywords, similar to nesting it within curly brackets {} in C#. For more details on scope in Lua, please see the /articles/Scope|Scope article.

Lua

C#

Cvs Laughlin

Variables

In Lua, variables do not specify their type when being declared/defined. Also, Lua variables do not have access modifiers, although you may prefix “private” variables with an underscore for readability.

Lua

C#

Loops

For Loops

Lua

C#

While Loops

Lua

C#

For Each Loops

Lua

C#

Conditional Statements

Lua

C#

Conditional Operator

Lua does not offer a direct equivalent to the C# conditional operator, a ? b : c. However, the Lua idiom a and b or c offers a close approximation, provided b is not false or nil. A complete explanation of this idiom can be found on the lua-users wiki. Note that you may need to surround this idiom with parenthesis in some cases.

Lua

C#

Functions

Be sure to read our article on articles/Understanding Functions in Roblox|Functions to get a deeper understanding of Lua functions.

Generic Functions

Lua

C#

Variable Argument Number

Lua

C#

Named Arguments

Lua

C#

Try/Catch Structures

Lua

C#

Tables

Be sure to read the articles/Table|Tables article to get a deeper understanding on how you can use tables in Lua.

Dictionary Tables

Tables in Lua can be used just like Dictionaries in C#.

Lua

C#

Numerically-Indexed Tables

Tables in Lua can also be used like a List in C#. The key difference is that indices start at 1 with Lua and 0 with C#.

Lua

C#

sol3 (sol2 v3.2.3)

sol2 is a C++ library binding to Lua. It currently supports all Lua versions 5.1+ (LuaJIT 2.x included). sol2 aims to be easy to use and easy to add to a project.The library is header-only for easy integration with projects.

Documentation

Find it here. A run-through kind of tutorial is here! The API documentation goes over most cases (particularly, the 'api/usertype' and 'api/table_proxy' and 'api/function' sections) that should still get you off your feet and going, and there's an examples directory here as well.

Sneak Peek

More examples are given in the examples directory here.

Supporting

Please use the buttons above and help this project grow.

You can also help out the library by submitting pull requests to fix anything or add anything you think would be helpful! This includes making small, useful examples of something you haven't seen, or fixing typos and bad code in the documentation.

Presentations

'A Sun For the Moon - A Zero-Overhead Lua Abstraction using C++'
ThePhDLua Workshop 2016 - Mashape, San Francisco, CA
Deck

'Wrapping Lua C in C++ - Efficiently, Nicely, and with a Touch of Magic'
ThePhDBoston C++ Meetup November 2017 - CiC (Milk Street), Boston, MA
Deck

'Biting the CMake Bullet'
ThePhDBoston C++ Meetup February 2018 - CiC (Main Street), Cambridge, MA
Deck

'Compile Fast, Run Faster, Scale Forever: A look into the sol2 Library'
ThePhDC++Now 2018 - Hudson Commons, Aspen Physics Center, Aspen