IB: Implementation-defined Behaviour. The standard leaves it up to the particular compiler/platform to define the precise behaviour, but requires that it be defined. Using implementation-defined behaviour can be useful, but makes your code less portable. UB: Undefined Behaviour. The standard does not specify how a program invoking undefined behaviour should behave. Also known as “nasal … Read more
SDL_Window SDL_Window is the struct that holds all info about the Window itself: size, position, full screen, borders etc. SDL_Renderer SDL_Renderer is a struct that handles all rendering. It is tied to a SDL_Window so it can only render within that SDL_Window. It also keeps track the settings related to the rendering. There are several … Read more
Compiling is the act of turning source code into object code. Linking is the act of combining object code with libraries into a raw executable. Building is the sequence composed of compiling and linking, with possibly other tasks such as installer creation. Many compilers handle the linking step automatically after compiling source code.
A servlet-container supports only the servlet API (including JSP, JSTL). An application server supports the whole JavaEE – EJB, JMS, CDI, JTA, the servlet API (including JSP, JSTL), etc. It is possible to run most of the JavaEE technologies on a servlet-container, but you have to install a standalone implementation of the particular technology.
The official name is “object operator” – T_OBJECT_OPERATOR.
A domain specific language is a language that’s written to deal with a specific domain or set of concerns. There are a lot of them around, like make, ant, and rake for describing software builds, or lexx and yacc for language construction. In recent years, they’ve become popular as some things have combined to make … Read more
It’s easiest to understand what non-lexical lifetimes are by understanding what lexical lifetimes are. In versions of Rust before non-lexical lifetimes are present, this code will fail: fn main() { let mut scores = vec![1, 2, 3]; let score = &scores[0]; scores.push(4); } The Rust compiler sees that scores is borrowed by the score variable, … Read more
pushing a value (not necessarily stored in a register) means writing it to the stack. popping means restoring whatever is on top of the stack into a register. Those are basic instructions: push 0xdeadbeef ; push a value to the stack pop eax ; eax is now 0xdeadbeef ; swap contents of registers push eax … Read more
Monolithic kernel is a single large process running entirely in a single address space. It is a single static binary file. All kernel services exist and execute in the kernel address space. The kernel can invoke functions directly. Examples of monolithic kernel based OSs: Unix, Linux. In microkernels, the kernel is broken down into separate … Read more
Traditionally by megabyte we mean your second option — 1 megabyte = 220 bytes. But it is not correct actually because mega means 1 000 000. There is a new standard name for 220 bytes, it is mebibyte (http://en.wikipedia.org/wiki/Mebibyte) and it gathers popularity.