Is it okay to change the key signature in the middle of a bar? In that case the correct & obvious solutions (use Numpy or shaders) fixed it. Cat may have spent a week locked in a drawer - how concerned should I be? In this example, the lines of code I want to run will make a plot. Why is type reinterpretation considered highly problematic in many programming languages? Why is there no article "the" before "international law"? C++, using #if TRUE conditional directive, Preprocessor directive inside an one line if. you could have a function that is something like. Yeah I should note that I only use Python in simple personal projects that no-one else will ever have to read. Cat may have spent a week locked in a drawer - how concerned should I be? My conclusion, therefore, is that multiple line conditions should look ugly and this is an incentive to avoid them. (I use it myself often too. How to test my camera's hot-shoe without a flash at hand. In addition to this you can declare a function or a lambda to return your true false as opposed to creating an extra variable. Conclusions from title-drafting and question-content assistance experiments Code-style for indention of multi-line 'if' statement? The studio has denied any such intention. Otherwise, you're probably better off trying something else. Don't wrap code at 80 columns. What are the reasons for the French opposition to opening a NATO bureau in Japan? By clicking Post Your Answer, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct. +1 for keeping indents where you can keep track of them. By clicking Post Your Answer, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct. this is very useful information and in the event I will need to call for help again I will stride to be more detailed. If I did want to hard-code a statement like this, I would write it like this for legibility: And just to throw another solution out there with an iand operator: What if we only insert an additional blank line between the condition and the body and do the rest in the canonical way? The indentation and placing the logical operators at the beginning of the line is a very good way to give overview of the order of the conditions. How to write inline if statement for print? Line continuation is always done by the preprocessor. Can #define preprocessor directive contain if and else? Each preprocesing macro can be written in multiple lines using \ on the end of current line. there is no method with that name - i just wanted something sounding a bit sensible to have more than one line in the body. Why is type reinterpretation considered highly problematic in many programming languages? Neither of those two examples have anything at all to do with the C preprocessor. You can use the same categories in multiple statements. I mean we should think again about our code if we have to do this kind of coding. Knowing the sum, can I solve a finite exponential series for r? How to reclassify all contiguous pixels of the same class in a raster? This is really subjective (i.e. see "Aligned with opening delimiter": http://google-styleguide.googlecode.com/svn/trunk/pyguide.html?showone=Indentation#Indentation. Sometimes I break long conditions in ifs onto several lines. Is it ethical to re-submit a manuscript without addressing comments from a particular reviewer while asking the editor to exclude them? How to mount a public windows share in linux, Add the number of occurrences to the list elements. This looks much better. Not the answer you're looking for? How to explain that integral calculate areas? op2 : op3; Nested Ternary operator: Ternary operator can be nested. How do I store ready-to-eat salad better? There is no #then keyword in cpp :), i think the answer for this would be using character escaping for end of line '\'. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Plain and simple, also passes pep8 checks: In recent times I have been preferring the all and any functions, since I rarely mix And and Or comparisons this works well, and has the additional advantage of Failing Early with generators comprehension: Just remember to pass in a single iterable! http://www.python.org/dev/peps/pep-0008/#indentation. My code is like this k=1; m=1; for i=1:length(a) if a(i)==b possition. This is also more readable than the first example, but the indentation is not a multiple of 4 anymore and besides that it looks wrong as the second line has less indentation than the beginning of the condition in the first line. Vote. If you think otherwise then you should add OP's code reformatted by your approach to prove your point. And it helps. I upvoted this answer.) To learn more, see our tips on writing great answers. Each statement belongs to one of the following categories: Ask Question Asked 12 years, 6 months ago Modified 12 years, 6 months ago Viewed 12k times 6 I am validating input on a form and attempting to prompt the user of improper input (s) based on the combination of controls used. ;), I think he was using functions only as an example, because he can easily make them print something. This expression is not lazy. Not the answer you're looking for? If you want you can also use else if structure so that code is tighter but I prefer this. h : i a ? This is a comment not an answer and the reverse is actually preferred, to end each line with "or", "end" or "else". I like it, great comment @pmg! Extra bonus: when debugging your code, some "redundant" variables come in handy. [closed], Starting the Prompt Design Site: A New Home in our Stack Exchange Neighborhood, Temporary policy: Generative AI (e.g., ChatGPT) is banned. Sure this might look fine, but reading those if statements is a lot of work. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Example: I kind of like this because when you look at it, a bell immediatelly rings in your head saying "hey, there's a complex thing going on here!". Whitespace. Is this multi line if statement too complex? Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, The future of collective knowledge sharing, Sorry, my expected output in this case is a plot of. If im applying for an australian ETA, but ive been convicted as a minor once or twice and it got expunged, do i put yes ive been convicted? This is in fact a valid case for line continuation. Using a function or a variable makes the code clearer. Update the question so it focuses on one problem only by editing this post. as it makes a nice distinct "block" of code. The block of code inside the if statement is executed is the condition evaluates to true. Use parenthesis ( ) to enforce your order-of-evaluation intention. Let's discuss the two cases in detail. I have gone back and made the suggested changes for the issue of not falling out of if statement when needed. These should be used in preference to using a backslash for line continuation." It also allows cleaner expression of more complex conditions: Yes, we're trading off a bit of vertical real estate for clarity. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, The future of collective knowledge sharing, How to write an if statement with multiple || and && in C? The problem area is the last bit of coding. The switch is obfuscating and does not give me the overview (I should now downvote the answer again). It might be better to write this with a switch statement inside of an if instead. What are the reasons for the French opposition to opening a NATO bureau in Japan? IF (X = something1) OR (X = something2) OR (X = something2) OR . There's really a variable just to avoid a multi-line if?! This looks pretty inconsistent as the second line is indented much more than the first line but it's readable. A player falls asleep during the game and his friend wakes him -- illegal? Sum of a range of a sum of a range of a sum of a range of a sum of a range of a sum of. Post-apocalyptic automotive fuel for a cold world? If the conditions need to be evaluated more than once, as in a while loop, then using a local function is best. How to check if a string contains an element from a list in Python. I suggest moving the and keyword to the second line and indenting all lines containing conditions with two spaces instead of four: This is exactly how I solve this problem in my code. I am wanting to have a multi condition if statement using the || (or) and the && (and) in one statement. Hence, You entered -2 is displayed on the screen. Can you solve two unknowns with one equation? Enter an integer: 5 The if statement is easy. if (condition1) if (condition2) do_something So only if condition1 and condition2 are met, will the code in the do_something block be executed. Incorrect result of if statement in LaTeX. Here is my problem: if statements allow multiple statements to be executed only when the test expression is not a vector: ifelse statements allow one statement to be executed when the test expression is a vector: However, what if you want to run an if statement on a vector and then run a whole section of code based on the results? Heck, you could theoretically even do Also, do yourself a favor and place parenthesis around each compare, just so that you and everyone else is sure of the order of the && and || above. You didn't take the chance to show off comment start and end symbols split over multiple lines by backslash-newline combinations. But I think this is the way someone in kernel space can make this. Can you solve two unknowns with one equation? i think placing a line break before logic operator is a lot clearer, @Urda I disagree. With its default options it gives you GNU indentation, i.e. The idea is that the printf() conversion speficiers and the respective variables are all lined up "nicely" (for some values of "nicely"). You don't need to use 4 spaces on your second conditional line. Reload to refresh your session. Yes, I know that parentheses don't help readability, but these conditions should appear rarely enough, and when they do show up, you are going to have to stop and read them carefuly anyway (because they're complex). An option I sometimes use (although I'm not completely sold on its readability): Possibly it would be more readable this way: Pep-8 recommends the way you indented your original example. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, The future of collective knowledge sharing. @Dan While joining adjacent literals may be performed with either preprocessor or compiler (at it last stage before actual compilation), handling line continuation is performed by preprocessor, because otherwise multiline macros cannot be implemented. 1. If you want to break a string literal onto multiple lines, you can concatenate multiple strings together, one on each line, like so: The C compiler can glue adjacent string literals into one, like. I'd also note that your switch statement doesn't really accomplish much: In particular, you take exactly the same action for all the cases (except the default). [this could be a bit too much for some readers ]. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. rev2023.7.13.43531. Can you imagine a debugger in an IDE that put all variables and values onto a single line? It is also known as the ternary operator as there are three operands in it. I wonder how many bugs have been accidentally introduced over the years due to accidental mis-indentation All respondents that also provide multi-conditionals for the if statement is just as ugly as the problem presented. I concede that \ is not universally favoured though. What is the purpose of putting the last scene first? Find centralized, trusted content and collaborate around the technologies you use most. Your if statement become: if (any(mydf2$c > 2)). PEP-8 actually seems contradictory here. Why gcc is so much worse at std::vector vectorization than clang? geeksforgeeks Line continuation are divided into two different ways: Explicit line continuation Implicit line continuation Using "\" (Explicit line continuation): In this type of multi-line statement, we will be using the line continuation character (\) to split a statement into multiple lines. I read somewhere in either Gries or Djikstra that putting the logic operator at the front of the line -- making more visible -- helped. How do I perform an IFTHEN in an SQL SELECT? You can use this to spread preprocessor directives across multiple physical lines. I want to know if it is possible to include an if else statement completely inside a multi-line macro. Why is type reinterpretation considered highly problematic in many programming languages? My colleagues would kill me for using goto.. but thank you for showing me an example of an good alignment. Syntax if (condition) { // block of code to be executed if the condition is true } Note that if is in lowercase letters. Others have already helped you with the problem you've noticed. Connect and share knowledge within a single location that is structured and easy to search. Writing conditional statements without using if/else/? Using variables for intermediate results of a calculation can make code easier to understand, and in a compiled language won't have any performance impact. In the second example above, I think it's clear that the operands to, As of the current version of PEP8, breaking either before or after a binary operator, Interesting alternative. 2022 MIT Integration Bee, Qualifying Round, Question 17. How to reclassify all contiguous pixels of the same class in a raster? Note that the Style Guide recommends putting the conditional at the end of the line. One of the questions asked is "what do you prefer for cases like that?" Such code quickly turns completely unreadable/unmaintainable. Why is type reinterpretation considered highly problematic in many programming languages? c == 1 && d == 1. Connect and share knowledge within a single location that is structured and easy to search. As the main purpose to splitting conditions on multiple lines is code readability, Going further I would suggest to create small meaningful functions, This will make your code even more readable. P.s. IntelliJ Scala Plugin's case class indentation is absurd. Placing the binary operators at the beginning of lines instead of at the end IMO makes it clearer what the intent is. Why printf statement don't continue to next lines? By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. What is the difference between #include
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