The ## Concatenation Operator

The preprocessor ## operator concatenates macro arguments. For example:

 #define paste(x,y) x ## y

The paste() macro takes two arguments and concatenates them into one. The whitespaces surrounding the ## operator as well as the ## symbol are removed in the concatenation process. In the following example, the paste() function-like macro concatenates the literal 1000 and the affix L thereby creating the constant 1000L.
#define paste(x,y) x ## y#define LONG_MAX paste(1000,L) // LONG_MAX equals 1000L

Share the Post:
Share on facebook
Share on twitter
Share on linkedin


The Latest

microsoft careers

Top Careers at Microsoft

Microsoft has gained its position as one of the top companies in the world, and Microsoft careers are flourishing. This multinational company is efficiently developing popular software and computers with other consumer electronics. It is a dream come true for so many people to acquire a high paid, high-prestige job

your company's audio

4 Areas of Your Company Where Your Audio Really Matters

Your company probably relies on audio more than you realize. Whether you’re creating a spoken text message to a colleague or giving a speech, you want your audio to shine. Otherwise, you could cause avoidable friction points and potentially hurt your brand reputation. For example, let’s say you create a

chrome os developer mode

How to Turn on Chrome OS Developer Mode

Google’s Chrome OS is a popular operating system that is widely used on Chromebooks and other devices. While it is designed to be simple and user-friendly, there are times when users may want to access additional features and functionality. One way to do this is by turning on Chrome OS