乔部落格

世界上有10种人:认识二进制的和不认识二进制的

c语言宏中”#”和”##”的用法

joe posted @ 2010年4月24日 17:29 in 编程 with tags C语言 , 2869 阅读

我们使用#把宏参数变为一个字符串,用##把两个宏参数贴合在一起。

#define STR(s)     #s
#define CONS(a,b)  int(a##e##b)
printf(STR(vck));           // 输出字符串”vck”
printf(”%d\n”, CONS(2,3));  // 2e3 输出:2000

 

 

maid services dubai 说:
2020年2月24日 16:22

Clinic cleaning assistance are moderately low by cost when compared to the total selling price of selecting conventional vacuuming methods. The system is commendable mainly due to its quality from services delivered, which get the office environment professional not to mention organized.

John 说:
2021年11月04日 23:01

Thank you for taking the time to publish this information very useful! fraud investigation

John 说:
2021年11月05日 13:50

Thanks For sharing this Superb article.I use this Article to show my assignment in college.it is useful For me Great Work. ارخص موقع لشراء متابعين

John 说:
2021年11月07日 18:03

Deciding to buy a folding wagon is one of the most common things today. To carry the weeds that you have plucked, to carry along the tools like spades, trowels, gloves, pesticides, pruners and the rest of the team, it becomes very challenging to move them to and fro in the backyard. A person finds it hard to carry multiple items, hence, the need for a wagon. This handy, fold-able, comfortable and portable utility is by far the best in providing the support one needs when they go gardening. Better Homes and Gardens

John 说:
2021年11月07日 18:09

There are several great ways to travel to Caribbean islands and one of the best ways is to book a long Caribbean cruise. You can book your travel to Caribbean ports with one of the top cruise lines online and save even more money. Travelzoo Dubai

John 说:
2021年11月07日 18:14

With their almost inherent allure, treasure and scavenger hunts have, for years, been a staple of the corporate party and picnic scene. Under-utilized, however, are the team aspects of the treasure hunt model. With just a bit of ingenuity, treasure hunts can be adapted for a more "practical," bottom-line purpose: that of helping organizations build high performance work teams. Team Trees Scam

John 说:
2021年11月08日 23:16

Ever wondered how to download anime movies? If you are a great fan of Japanese culture and for that matter, a fanatic of cartoons like Naruto, Genesis Evangelion, Sailor Moon and Bleach, you would love to be able to download anime movies without paying much. download anime

John 说:
2021年11月09日 14:43 The snow cone, is a popular summer treat, that consists of a shaved or crushed ice that is then served in a paper cylindrical cone and is then topped with flavored sugar syrup. The sizes and flavors can vary from vendor to vendor, but some of the most common flavors that can typically be purchased anywhere include watermelon, pink bubble gum, cotton candy and blueberry. There are literally hundreds of different syrups available. inflatable snow globe
John 说:
2021年11月10日 08:36

T-shirt printing online t-shirt printing has become a trend now a day. As it is a promotional and gifting material, People love to wear their own branded t-shirt, with a logo or photo printed t-shirt and gift to their near and dear. NGO and corporate company provide dress to their employee and volunteer for branding and product and services promotion as well as in event and casual wearing. Most of all t-shirt printing is done by sublimation, screen printing, and embroidery. You can get to print your t-shirt just in15-minute full colored as you wish. Sublimation printing is most compatibility on polyester and polyester cotton t-shirt. Cotton fabric is best for a vinyl sticker with the hot process. Where screen printing, takes a little bit longer than the sublimation process but economical for bulk quantity. screen printing Cincinnati

John 说:
2021年11月11日 18:28 If you are tired of losing money betting sports then read on. I am about to show you how essential application of sports betting systems is if you ever want to make another dollar betting on sports. 먹튀폴리스
John 说:
2021年11月14日 15:02

This short article is just about my experience when shopping for a BMW with a LOW budget. I have bought a 2000 323ci coupe via an authorized BMW dealer. Buy wise Verified account

John 说:
2021年11月15日 14:30

People who love to play casino games know very well that how much interesting and the wonderful is the slots game. It is basically depends on your luck that how much you can get form this game and if you hit the jackpot and you won then it is just like you have changed your life with your luck. There are different ways of playing the slots like you can play them by just going to any casino where different kinds of the slot machines are placed or you can play it even online by just sitting in your home. pragmatic

John 说:
2021年11月15日 19:30

If you want to learn tips on how to win at slot machines, then read this. You will get tips on how to increase your chances of winning and you will also learn about some slot machine secrets. judi slot online

John 说:
2021年11月16日 19:10

While most kids see inflatable bounce houses as a fun and entertaining thing, there are parents who see it with dread. This is because kids can easily injure themselves inside bounce houses because they end up being indulged in having fun. Since it is hard to stop kids from having fun, it is the job of the parents to adjust and make sure kids are safe. read more

John 说:
2021年11月30日 14:22

This is such a great resource that you are providing and you give it away for free. I love seeing blog that understand the value of providing a quality resource for free. http://69.195.78.97/login/

John 说:
2021年12月01日 18:39

In this article we look at the best names in weed eaters, the pros and cons if any. Making an educated purchase a string trimmer is always the right thing to do, before spending any money. By reading this article you will have a good understanding of who the best weed eater companies are to help you in your purchase. buy Cali weed online

John 说:
2021年12月02日 12:55

In order to make a success of sports betting it is important to have a strategic plan. Which means you need to understand the basic sports betting strategies. Here we discuss the basics. 토토사이트

John 说:
2021年12月05日 13:23

This is an excellent post I seen thanks to share it. It is really what I wanted to see hope in future you will continue for sharing such a excellent post. 707벳

John 说:
2021年12月06日 13:16

I surely acquiring more difficulties from each surprisingly more little bit of it 세븐 토토

John 说:
2021年12月08日 01:57

wow, great, I was wondering how to cure acne naturally. and found your site by google, learned a lot, now i’m a bit clear. I’ve bookmark your site and also add rss. keep us updated. greatest mathematicans

John 说:
2021年12月09日 19:46

Nice post! This is a very nice blog that I will definitively come back to more times this year! Thanks for informative post. 모모벳

John 说:
2021年12月15日 13:09

Many people have experienced an injury caused by someone being reckless or careless. When this happens, they are inclined to file a lawsuit. toxic baby formula lawyer

John 说:
2021年12月16日 13:55

It depends on the competency of personal injury lawyers how a compensation claim case will be ruled. So to get justice and to receive right compensation it is important to deal with good personal injury lawyers. personal injury attorney nashville

John 说:
2021年12月19日 14:38

Created by LGBTQ.one, THEAPP is a cutting edge PWA (Progressive Web App) that can be used to reduce homophobic interactions with merchants by acting as an LGBTQ-friendly business directory and as a social platform. Connect with friends and find a friendly place to meet up in your city without fear of hostility. gay friendly businesses

John 说:
2021年12月23日 01:24

Florida Disney World theme park is one of the most beautiful theme parks in the world. And now you can get all the information regarding it online before visiting it. best woocommerce theme

John 说:
2021年12月29日 14:48

Regular visits listed here are the easiest method to appreciate your energy, which is why why I am going to the website everyday, searching for new, interesting info. Many, thank you! Event Planners

John 说:
2021年12月31日 19:20

Criminal lawyers generally work for people who are accused of felonies such as murder, assault, family violence, embezzlement, etc. The service of a criminal lawyer is essential to make sure that your legal rights are sheltered throughout the judicial process. Since criminal consequences may include fines, imprisonment, mandatory treatment, and probations, it is always advisable to hire a criminal lawyer with adequate expertness and experience in the field. Various resources are available to find a competent and experienced criminal lawyer. Referrals are always considered to be the most important source; the name of a competent criminal lawyer may come from any circle such as friends, colleagues, family, etc. The public defender's office in your county will also be able to suggest a competent criminal lawyer for you. toxicinfant formula lawsuits

John 说:
2022年1月01日 14:55

Get married in beautiful bliss at this gorgeous new banquet facility in the center of Palm Beach County. The modern amenities and affordable prices make it great for your ceremony and reception! table and chair rentals Palm Desert

John 说:
2022年1月06日 18:47

The end of the school season is approaching and that means fun summer parties! Planning a party can sometimes be so overwhelming that families avoid throwing them. That doesn't have to be the case this summer - often it is the simplest parties that are the most successful! check here

John 说:
2022年1月06日 21:00

Evidence suggests that the first crossbows were made towards the end of the fourth century BC in China and surrounding areas. They appear to have been first used as toys or for untended traps. Crossbows are mentioned in the famous document by Sun Tzu, The Art of War, written sometime between 500 and 300 BC and a fourth century BC document, also from China, has references to a giant catapult. The tomb of the emperor Qin Shi Huang, famous for the Terracotta Army, contains crossbow remains. crossbow target

John 说:
2022年1月07日 13:24

Your blog provided us with valuable information to work with. Each & every tips of your post are awesome. Thanks a lot for sharing. Keep blogging, nclex test prep

John 说:
2022年2月05日 20:07

Perhaps one of the best parts of playing poker online is that you have a number of games to choose from. 바둑이

John 说:
2022年2月13日 12:23

Great article Lot's of information to Read...Great Man Keep Posting and update to People..Thanks aplikasi angka togel

John 说:
2022年3月05日 18:43

Wow i can say that this is another great article as expected of this blog.Bookmarked this site.. Dragon Legend

John 说:
2022年3月19日 18:14

If there's any business looking for affordable methods of advertising and marketing, it's the dollar store. These establishments appeal to people in every income bracket, from those seeking good deals to families whose limited budgets make it necessary to shop at the dollar store. is inbox dollars legit

John 说:
2022年4月13日 14:16

I must say, I thought this was a pretty interesting read when it comes to this topic. Liked the material. . . . . https://vivanet2.com/

John 说:
2022年4月18日 13:32

Really impressed! Everything is very open and very clear clarification of issues. It contains truly facts. Your website is very valuable. Thanks for sharing. non pta iphone

메리트카지노 说:
2022年5月03日 11:33

On my own blog, which I just recently started up, I know I don’t have much of a readership so it will take a while to develop comments and community, but I still want to do things right…So I’ll definitely keep this article in mind…particularly your comment #5, which I think deserves to be a follow-up article in itself.
I have found that the “be first to leave a comment” has worked sometimes, but possibly intimidated in other circumstances. Yeah, a lot of people would love to be the first to post on popular blogs, but on startups? Not always.
When I ask a question at the end of a post, I always get responses. I do it judiciously, though, as I like to ‘mix it up’ and not always ask for a response.
https://711casino.net

코인카지노 说:
2022年5月03日 11:34

great advice. I’m trying to ask open ended questions at the end of my posts, but it doesn’t always work, and often people will comment, but not answer the questions.
What am I doing wrong? Am I putting the comments in the wrong place? Should they be closer to the beginning of the post, or in the middle, or where? Thanks.
Getting comments is the bane of my existence! I try to end the post with a question about how my readers are using [insert topic] and no one responds. I have tried to hold contests where I will give them FREE PUBLICITY for a comment and nada.


登录 *


loading captcha image...
(输入验证码)
or Ctrl+Enter