What's the best way to write a multi-statement cpp macro?
The C Language FAQThe usual goal is to write a macro that can be invoked as if it were a single function-call statement. This means that the "caller" will be supplying the final semicolon, so the macro body should not. The macro body cannot be a simple brace- delineated compound statement, because syntax errors would result if it were invoked (apparently as a single statement, but with a resultant extra semicolon) as the if branch of an if/else statement with an explicit else clause.
Related QuestionsWhat's the best way to write a multi-statement macro?
C PreprocessorThe usual goal is to be able to invoke the macro as if it were an expression statement consisting of a function call: MACRO(arg1, arg2); This means that the ''caller'' will be supplying the final semicolon, so the macro body should not.
Related QuestionsHow can I write a cpp macro which takes a variable number of arguments?
Infrequently Asked Questions in comp.lang.cShouldn't the following code: #define ROSE 1 #define CHRYSANTHEMUM 2 #define RHODODENDRON 3 #define WATER_LILY 4 printf("%d\n", CHRYSATHNEMUM);
Related QuestionsThe C Language FAQOne popular trick is to define the macro with a single argument, and call it with a double set of parentheses, which appear to the preprocessor to indicate a single argument: #define DEBUG(args) (printf("DEBUG: "), printf args) if(n != 0) DEBUG(("n is %d\n", n)); The obvious disadvantage is that the caller must always remember to use the extra parentheses. (It is often better to use a bona-fide function, which can take a variable number of arguments in a well-defined way. See questions 7.Related Questions
How is the best way to write the title?
Freebacklinks.infoThe title is most probably the single most important place to put your keyword. Have the word in the beginning of the title and also in the end. Try to vary it in different forms as well. If you want to brand your company name you should keep that name in the end. Try to follow this and at the same time make it look natural and appealing for the visitors. Remember that this is what is most visible in the SERPs for the visitor.
Related QuestionsHow is the best way to write titles?
SEO FAQ :: Search Engine Optimization FAQ :: SEO QuestionsInclude the word in the beginning of the title and in the end experimenting with different forms as well. Follow these steps but also make it look natural and appealing for visitors. Remember that this is what is most visible in the SERPs for the visitor.
Related QuestionsWhat is the best way to write the URL's?
Frequent Questions About SEO | How To Get Ranked In Search E...In regards to Google it has been stated by two of their staffs involved in the SEO community (GoogleGuy and Matt Cutts) that the dashes (-) are better than underscores (_) when writing the URLs. This has also been confirmed by my own tests on the matter.
Related QuestionsWhat is the best way to introduce a new cat into a multi-cat household?
Cat or kitten adoption frequently asked questions FAQThe first thing we suggest about bringing another cat into your house is that you have it feline leukemia tested before introducing him to your existing cat(s). When you are sure your new cat has tested negative for feline leukemia, shut him in an extra room along with his litter, food and water for at least a week or two. (This room will become a "safe spot" for your new cat. Anytime he gets spooked in the future, he'll return to this room for comfort).
Related QuestionsWhat is the best way to write a petition?
GoPetition.com / Help (FAQ) / Petitions / How to Write a Pet...Please see our notes at how to write a petition. This page has many in depth resources for petition writing. We also have a more basic introductory how to start a petition page, which is less complicated, but equally as helpful.
Related QuestionsWhat is the best way to write URLā??s?
SEO FAQ :: Search Engine Optimization FAQ :: SEO QuestionsTo wite URLā??s for Google it has been declared by two of their staffs in the SEO department that the dashes (-) are better than underscores (_) when writing the URLs.
Related QuestionsHow can I write an effective vision and mission statement?
Frequently Asked Questions (FAQ) - Grants: Office of Resourc...Think of a vision statement as describing how you want your school/office to be, your expectations, your dreams for your school/office. A mission statement is a refinement of that vision and describes the steps on how to achieve it. Vision and mission statements are best written with input from groups who would be involved in realizing the school's vision and mission. Statements should be clear, concise, relevant, and broad enough to allow for various interpretations.
Related QuestionsWhat can you use to write FAQs? What's the best?
GameFAQs: Message ListAny program that can edit text (such as Notepad, UltraEdit, Microsoft Word, OpenOffice.org Write, etc.) can be used. The tricky part is making sure you get the linefeeds in each line. There's a free program that many FAQ authors use called MetaPad (http://www.liquidninja.com/metapad/) that allows you to easily put in linefeeds (Commit Word Wrap) and remove trailing spaces. Another option is to write your FAQ and then use IGN's Format Tool (http://faqs.ign.com/format_faq.
Related QuestionsWhat is the best way of producing multi-address label sheets in PostCoder?
Postcode lookup software Frequently Asked QuestionsYou should use Microsoft Word (or similar) to produce a sheet of labels and then use Send Direct within PostCoder to transfer the address into the appropriate label. In Word 2000, you would do this as follows: If the required label type is not selected, click Options and choose the required label from the selection box. Click in a label and switch to PostCoder. At this point, if PostCoder is already active, you may press Alt-P to activate PostCoder.
Related QuestionsWhere is the best macro diving in Indonesia?
Scuba Diving Vacation Indonesia - Frequently Asked Questions...Muck diving is increasing in popularity and it seems that everywhere lays claim to having great macro dive sites. If you are thinking of a period of sustained critter hunting, then there can be nowhere better than the Lembeh Strait in Sulawesi. This is a sheltered stretch of water almost like a lake where the range of bizarre and rare creatures is quite breathtaking.
Related QuestionsWhat is CPP?
Life Savings - CPP_FAQsSixteen million Canadians contribute to or benefit from the Canada Pension Plan. Participation is mandatory for employees, employers, and self-employed persons of all provinces, except Quebec. Quebec has the Quebec Pension Plan (QPP). For more information on Quebec visit http://www.rrq.gouv.qc.ca/an/rente/11.htm
Related QuestionsHow can I write a macro to change the password of my project?
Excel 97/2000 Developer FAQ: Part 2You can't. The protection elements of a VBA project are not exposed in the object model. Most likely, this was done to make it more difficult for password cracking software. If this line is included at the top of a module, it means that you must declare every variable before you use it (which is a good idea).
Related QuestionsHow do I write a macro that expands into something containing ellipses (...)?
scheme-faq-macrosR5RS macros can produce output containing ellipses if there are ellipses in the input, i.e. at the place of macro usage. However, standard R5RS macros cannot introduce ellipses due to their special syntactic status in macro template. Therefore a number of Schemes implement extensions for quoting ellipses. Typically this is done using (... ...). This feature is particularly useful when defining macros that expand into other macro definitions. See here.
Related QuestionsCan one write a macro that substitutes occurrences of identifiers?
scheme-faq-macrosStandard R5RS macros only expand on the operator (i.e. the first) position in a list datum. You cannot, for instance, define a macro like this: (define-syntax foo (syntax-rules () (foo (get-foo)))) Kent Dybvig's macro package (see here), which is also part of Chez Scheme, extends R5RS macro syntax to permit the above.
Related QuestionsHow can I write a generic macro to swap two values?
Comp.lang.c FAQ Table Of ContentsI have some old code that tries to construct identifiers with a macro like "#define Paste(a, b) a/**/b ", but it doesn't work any more.
Related QuestionsC PreprocessorThere is no good answer to this question. If the values are integers, a well-known trick using exclusive-OR could perhaps be used, but it will not work for floating-point values or pointers, or if the two values are the same variable. (See questions 3.3b and 20.15c.) If the macro is intended to be used on values of arbitrary type (the usual goal), any solution involving a temporary variable is problematical, because: It's hard to give the temporary a name that won't clash with anything.Related Questions
How do CallBacks work? What is the best way to write a CallBack?
A CallBack is the specified action that MATLAB performs when the user selects the menu item to which the CallBack has been assigned. When the button or menu item is selected, the expression contained within the CallBack string is executed. For example: h=uicontrol('Style','PushButton','String','title',... 'CallBack','disp(''hello'')')' When you push on the button, hello will be displayed in the MATLAB workspace. The most efficient way to write a CallBack is to make the CallBack a function.
Related QuestionsWhat's best way to show your parents that all will be fine?
Frequently Asked QuestionsFirst of all, before I went to Colorado, I made sure that I had a lot of backup plans. For example, my first plan was that my friend Zoey would pick me up from the Denver Airport, but I didn't know if she was going to meet me at the gate or in the parking lot. I figured, just go get my bags and go into the I hope I've answered all your questions. If there is something you would like to ask me, please e-mail me.
Related QuestionsWhat is the best way to clean the roof?
Stain Solver - Frequently Asked QuestionsBrush off all loose debris and scrape off any large deposits of moss or algae. Apply the solution with a pump sprayer to cool shingles! If the shingles are in sunlight, the solution will evaporate before it can work. Keep the roof surface wet with the solution for at least 30 - 45 minutes. Scrub lightly with a broom or brush and rinse well with water. Try a test section first using just one quart of solution. If it is still stained, boost the concentration to 8 ounces per gallon of water.
Related QuestionsWhat is the best way to apply for an internship?
Frequently Asked QuestionsYou should apply online via our Career Center. You will need to fill out a profile and submit your resume there.
Related QuestionsWhat's The Best Way To Tell Someone About This Site?
Frequently Asked Questions - Rebuild Your BackI think you'll find that the best way to let others know about this site - whether online or in person - is to simply mention that you found a website on the internet that you like called RebuildYourBack.com and just leave it at that. If they're interested, they'll ask you more about it or visit the site on their own. Believe me, that great article you're just dying to have them read will more likely get read... and more likely have a positive impact... if they discover it for themselves.
Related QuestionsWhat is the best way to brush?
John K. Gunderson DDSClean the outside surfaces of your teeth by positioning the brush at a 45-degree angle against the base of your teeth (where your teeth meet your gums). Gently move the brush back and forth using a tight, circular motion. Apply light pressure to get the bristles in the crevasses between teeth. Clean the inside surfaces of your front teeth by putting your brush tip in a vertical position. Gently move the bristles back-and-forth over each tooth and surrounding gum tissue.
Related QuestionsWhat is the best way to floss?
John K. Gunderson DDSSlide the floss up and down a few times to make sure you have scraped away debris all the way down to your gum line.
Related QuestionsWhat's the best way to practice yoga?
Frequently Asked QuestionsA daily practice routine is best but given the "busy-ness" in our lives, this seems almost impossible for most of us. Try to practice according to how you feel, perhaps this means a little each day or longer practices three times a week; determine the routine that works best for you, whether you practice at home, in a class, or in a combination of the two.
Related QuestionsWhich would be the best way to go about this?
Answers and Articles about Birth control pills and abnormal ...I still would like to do a test as far as trying to adjust them by a day or two just to see if it works and comes out to the exact day like it does now. If it doesn't, then I would prefer to go back to my previous pill. How soon can I do this test, or what is the best time to do it so that I make sure I get proper results---I don't want to d it too soon and then find out that the pills were still adjusting and it was just a fluke that it worked out okay.
Related QuestionsWhat is the best way to get my teeth whiter?
ADHA - Frequently Asked QuestionsMost people have teeth that are naturally darker than "pure" white. If you want them whiter, the best thing you can do is talk to your professional oral health care provider about your options. Different people respond differently to different procedures used to whiten teeth, and it will take an in-person consultation with a professional to determine what is best for you.
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