math.h provides basic mathematical functions as part of the C standard library and are also usable from C++. However, it needs to be supplemented with custom libraries when advanced numerical functionalities are desired. In this article, we shall take a look at two such libraries - the GNU Scientific Library …

GCC's C compiler allows you to define various variable attributes. One of them is the cleanup attribute (which you can also write as __cleanup__) which allows you to define a function to be called when the variable goes out of scope (for example, before returning from a function). This is …

In C, the data you use in your programs will usually fall into one of the three basic categories: int, char and float. Data in C has no existence without an associated memory location labeled by an identifier, usually referred to as a variable (the term variable is a bit …