In the C Programming Language, the #ifndef directive checks if the given token has been #defined earlier in the C code. If the token has not been defined earlier then it includes the code between #ifndef and #else. If no #else is present then code between ##ifndef and #endif is included.
Learning programming is undeniably challenging. Achieving some level of mastery requires great focus and time. This applies to students pursuing degrees in computer science, veterans who can operate the GI Bill, aspiring self-taught programmers, and coding Bootcamp students. And even as mastering programming craft remains a perpetual struggle, it is something doable.
In the 4th edition, Cracking the Coding Interview gives you the interview preparation you need to get the top software developer jobs. This book provides 150 Programming Interview Questions and Solutions.
People consider computer programming a little tiresome but some find it more enjoyable. Every programmer has to keep up with the latest trends coming in the programming languages. Most of the programmers start programming in C as it is the most commonly used programming language for writing operating systems and applications.
As a programmer I used different ways to improve my programming skills, like reading/writing code, working with experienced programmers and reading blogs and websites. I have listed few of the points here which in my opinion will be quite useful for novice programmers.
There are always few little known or hidden features in each programming language. At StackOverflow.com someone started a series of posts “Hidden features of” programming languages. The Hidden Features series is great for people who are new to a certain language.
C language provides a standard and minimal set of basic data types. Sometimes these are called primitive data types. More complex data structures can be built up from these basic data types. Data types specify how we enter data into our C programs and what type of data we use for different operations. C has some predefined set of data types to handle various kinds of data that we can use in our program.
Today I will discuss top coding tips which can be applied to any particular programming language. Also these tips will help you to write self documented programs which are easy to maintain and understand by anyone.