Mon premier blog

Memory as a Programming Concept in C and C++ Frantisek Franek
Publisher: Cambridge University Press

The terms lvalue and rvalue are not something one runs into often in C/C++ programming, but when one does, it's usually not immediately clear what they mean. Smaller things run faster due to caching, and are also more . C++ is an Object Oriented Programming language, here we will discuss the concepts of C++ that are not present in C, also assuming that readers already having knowledge on C language. Indeed, both in C and certainly in C++, it is uncommon to see a screenful containing only well defined and conforming code. But in all seriousness, C/C++ should be considered niche languages, not for general purpose programming – and I say that as somebody who's been writing C for more than 25 years. Programming correct C and C++ is particularly hard. Because most programmers do not have a deep So why doesn't the compiler reorder the members in the structure to optimize memory usage, and execution speed? However, as a long-time C++ and C# programmer myself, I have to say that even though C++ is often the wrong choice, there are still many, many situations in which it's the only choice: 1) Cutting-edge 3D games. First, C++ is intrinsically stingy with memory (unlike Java objects, a C++ struct has no memory overhead if there are no virtual functions [modulo word alignment issues]). 2) Graphical and And for any application where you need explicit control over large amounts of memory – for example, if you're building an RDBMS – C#'s garbage-collected approach is a deal-breaker. Why do professional programmers write code like this?