Define a global variable in a JavaScript function. Learn how your comment data is processed. For speed reasons or for implementing a special communication protocol. For example, void exit (int status); 2: Function arguments as void. (Embedded) C: void function() or #define FUNCTION() Ask Question Asked 10 years, 5 months ago. There are various functions in C … This is better than a macro because it behaves like a function and doesn't have the pitfalls of a macro. Unfortunately, my compiler doesn't support inline functions. Before going further it will be good if you refresh about pointers by reading – Introduction to pointers in C. A pointer variable is usually declared with the data type of the “content” that is to be stored inside the memory location (to which the pointer variable points to). When void appears in a pointer declaration, it specifies that the pointer is universal. What does the ^ character mean in sequences like ^X^I? 1. im programming embedded devices and I was wondering what to use for a macrofunction, for example an init of some registers. A pro of using a macro is that you don't have to make prototypes (I hate prototypes, after working a few months in C#). I am considering “C” as the programming language and an application running in a dedicated hardware/device without operating system. Do I have to lower the foot and needle when my sewing machine is not in use? All Rights Reserved. Last modified September 21, 2020, Your email address will not be published. we mentioned other popular programming languages).. It is unusual that you run out of memory. eRPC. You aren't alone. A function saves you the overhead of having the same code in multiple places (program space). void *memcpy(void *dest, const void * src, size_t n) There are many popular programming languages like Assembly, BASIC, C++ etc. How To Hook Too Many input Buttons To only 1 pin o, FPGA Mojo Board .. SPARTAN6 When not overloaded, for the operators &&, ||, and , (the comma operator), there is a sequence point after the evaluation of the first operand. The extension of the C language is called an Embedded C programming language. This is part II of the article series. The C++ compiler is not as kind. I'd stick with a function in this case (and most, but not all, other cases for that matter). F/V Converter Board. That’s why, if you need to use a void pointer, you also want to keep track of the pointed type. A cleaner solution if you need in-place code is to use inline functions, which most modern compilers support. #include