I want to know blank line in code increase the program size or not ?

Qt embedded developer

I want to know the blank line in code increase the program size or not ?

I want to know cons of it ?

Kent-Dorfman

a developer of code would know that whitespace has no effect on compiled code size.

responsible use of white space is for the benefit of the reader. code should be written so that a complete idea can be expressed in a single viweable page of code text, details of algorithms broken out into subroutines (which in c++ can be expanded inline by the compiler), and blank lines before and after to logically separate the ideas.

fcarney

The code you see in your program (source code) is not what the computer uses to run. In C++ the code you write is compiled into special data called machine code. This code is generally unreadable to humans without special tools or knowledge. This special code is as compact as the compiler can make it depending upon which mode the code was compiled too (debug, release, etc). It can actually be bigger than the original source code the programmer wrote due to the libraries and needed startup code.

// comments have no effect on machine code size
QString something("the spaces            in here will           effect machine code size");



// The above blank lines will have no effect on machine code size.

You should take a look at how compiling works to understand this concept better.

fcarney

In Javascript used for webpages the size of the source code does matter. As the entire source code the programmer wrote is transmitted to the end user. To help with this JS devs often employ minifiers. Once the browser gets this code it is then compiled and run. So technically the running code is what is actually run by the JVM. So in the case of JS the source code size can matter.

Kent-Dorfman

Lets not talk about the abomination called javascript. God, I miss the simplicity and lack of commercial coersion that was Mosaic.

fcarney

@Kent-Dorfman But I use JS every day with QML. ...