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Basic Plus 2 (BP2 or BASIC-Plus-2) was later developed by DEC to add additional features and increase performance. It used true compilation into threaded code, and wrote its output to machine language object files. These were compatible with other object files on the system, and could be assembled into libraries.
For example, a VBA program written to automate Microsoft Word cannot be used with a different word processor, even if that word processor hosts VBA. Conversely, multiple applications can be automated from the one host by creating Application objects within the VBA code.
For example, in the expression (f(x)-1)/(f(x)+1), the function f cannot be called only once with its value used two times since the two calls may return different results. Moreover, in the few languages which define the order of evaluation of the division operator's operands, the value of x must be fetched again before the second call, since ...
Visual Basic (VB) before .NET, sometimes referred to as Classic Visual Basic, [1] [2] is a third-generation programming language, based on BASIC, and an integrated development environment (IDE), from Microsoft for Windows known for supporting rapid application development (RAD) of graphical user interface (GUI) applications, event-driven programming and both consumption and development of ...
The resulting object is called an object copy or simply copy of the original object. Copying is basic but has subtleties and can have significant overhead. There are several ways to copy an object, most commonly by a copy constructor or cloning. Copying is done mostly so the copy can be modified or moved, or the current value preserved.
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In object-oriented languages, string functions are often implemented as properties and methods of string objects. In functional and list-based languages a string is represented as a list (of character codes), therefore all list-manipulation procedures could be considered string functions.
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