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Duff realized that to handle cases where count is not divisible by eight, the assembly programmer's technique of jumping into the loop body could be implemented by interlacing the structures of a switch statement and a loop, putting the switch's case labels at the points of the loop body that correspond to the remainder of count/8: [1]
Switch statements function somewhat similarly to the if statement used in programming languages like C/C++, C#, Visual Basic .NET, Java and exist in most high-level imperative programming languages such as Pascal, Ada, C/C++, C#, [1]: 374–375 Visual Basic .NET, Java, [2]: 157–167 and in many other types of language, using such keywords as ...
switch <uint32, int32, int32 (t1..tN)> Jump to one of n values. Base instruction 0xFE 0x14 tail. Subsequent call terminates current method. Prefix to instruction 0x7A throw: Throw an exception. Object model instruction 0xFE 0x12 unaligned. (alignment) Subsequent pointer instruction might be unaligned. Prefix to instruction 0x79 unbox <valuetype>
The most common example of the correct use of a switch within a loop is an inversion of control such as an event handler. In event handler loops, the sequence of events is not known at compile-time, so the repeated switch is both necessary and correct (see event-driven programming, event loop and event-driven finite state machine).
In 1989, C++ 2.0 was released, followed by the updated second edition of The C++ Programming Language in 1991. [32] New features in 2.0 included multiple inheritance, abstract classes, static member functions, const member functions, and protected members. In 1990, The Annotated C++ Reference Manual was published. This work became the basis for ...
Microsoft Visual C++ (MSVC) is a compiler for the C, C++, C++/CLI and C++/CX programming languages by Microsoft. MSVC is proprietary software ; it was originally a standalone product but later became a part of Visual Studio and made available in both trialware and freeware forms.
For example, (a > 0 and not flag) and (a > 0 && !flag) specify the same behavior. As another example, the bitand keyword may be used to replace not only the bitwise-and operator but also the address-of operator, and it can be used to specify reference types (e.g., int bitand ref = n).
Bjarne Stroustrup (/ ˈ b j ɑːr n ə ˈ s t r ɒ v s t r ʊ p /; Danish: [ˈbjɑːnə ˈstʁʌwˀstʁɔp]; [3] [4] born 30 December 1950) is a Danish computer scientist, known for the development of the C++ programming language. [5]