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VR-Zone - Tech News and Product Reviews for PC Enthusiasts. Technology. Techspere. DIY Drones. iTechMax - Software, Technology, Blogging, Tips and Tricks. Daily Bits. PC Magazine - Computer, Software, Hardware and Electronics Reviews ... Metaprogramming. Metaprogramming usually works in one of three ways[citation needed]. The first way is to expose the internals of the run-time engine to the programming code through application programming interfaces (APIs).
The second approach is dynamic execution of expressions that contain programming commands, often composed from strings, but can also be from other methods using arguments and/or context.[1] Thus, "programs can write programs. " Although both approaches can be used in the same language, most languages tend to lean toward one or the other. The third way is to step outside the language entirely. Approaches[edit] In statically typed functional languages[edit] Usage of dependent types allows proving that generated code is never invalid.[2] [edit] [edit] Macro systems[edit] IBM/360 assembler[edit] Examples[edit] #! This script (or program) generates a new 993-line program that prints out the numbers 1–992. One style of metaprogramming is to employ domain-specific programming languages (DSLs). C (Programming Language) C is one of the most widely used programming languages of all time,[8][9] and C compilers are available for the majority of available computer architectures and operating systems.
C is an imperative (procedural) language. It was designed to be compiled using a relatively straightforward compiler, to provide low-level access to memory, to provide language constructs that map efficiently to machine instructions, and to require minimal run-time support. C was therefore useful for many applications that had formerly been coded in assembly language, such as in system programming.
Despite its low-level capabilities, the language was designed to encourage cross-platform programming. A standards-compliant and portably written C program can be compiled for a very wide variety of computer platforms and operating systems with few changes to its source code. The C language also exhibits the following characteristics: The cover of the book, The C Programming Language For example: File extension database.