Laufzeittrennung

Laufzeittrennung, also known as runtime splitting or runtime separation, is a technique used in computing to distinguish between different phases of a program's execution. This separation is typically based on when certain code or operations are performed. The most common distinction is between compile-time and run-time. Compile-time refers to the period when source code is translated into machine code. Run-time, on the other hand, is the period when the compiled program is actually executed by the computer.

This concept is fundamental to many programming paradigms and optimizations. For instance, in static typing, type checking occurs at compile-time, ensuring that variables are used with compatible data types before the program even starts running. Conversely, dynamic typing involves type checking at run-time, allowing for more flexibility but potentially introducing errors during execution.

Laufzeittrennung also plays a role in performance tuning. Developers might move computationally expensive operations from run-time to compile-time through techniques like metaprogramming or template metaprogramming. This pre-computation can significantly speed up the program's execution. The choice of where to perform certain tasks – at compile-time or run-time – is a crucial design decision that impacts a program's efficiency, safety, and flexibility. Understanding this separation is key to comprehending how software is built and optimized.