In computer programming, a runtime library is a special program library used by a compiler, to implement functions built into a programming language, during the runtime (execution) of a computer program. In Computer science, a library is a collection of Subroutines used to develop Software. A compiler is a Computer program (or set of programs that translates text written in a computer language (the source language) into another A programming language is an Artificial language that can be used to write programs which control the behavior of a machine particularly a Computer. In Computer science, runtime or run time describes the operation of a Computer program, the duration of its execution from beginning to termination Computer programs (also software programs, or just programs) are instructions for a Computer. This often includes functions for input and output, memory management or mathematical functions.
When the source code of a computer program is translated into the respective target language by a compiler, it would cause an extreme enlargement of program code if each command in the program and every call to a built-in function would cause the in-place generation of the complete respective program code in the target language every time. In Computer science, source code (commonly just source or code) is any sequence of statements or declarations written in some Human-readable Instead the compiler often uses compiler-specific auxiliary functions that are mostly not accessible to application programmers and which are implemented in the runtime library. Depending on the compiler manufacturer, the runtime library will sometimes also contain the standard library of the respective compiler or be contained in it. A standard library for a Programming language is the library that is conventionally made available in every implementation of that language
Also some functions that can be performed only (or are more efficient or accurate) at runtime are implemented in the runtime library, e. g. some logic errors, array bounds checking, dynamical type checking, exception handling and possibly debugging functionality. Exception handling is a programming language construct or computer hardware mechanism designed to handle the occurrence of a condition that changes the normal flow of execution For this reason, some programming bugs are not discovered until the program is tested in a "live" environment with real data, despite sophisticated compile-time checking and pre-release testing. In this case, the end user may encounter a runtime error message.
Usually the runtime library realizes many functions by accessing the operating system. An operating system (commonly abbreviated OS and O/S) is the software component of a Computer system that is responsible for the management and coordination Many programming languages have built-in functions that do not necessarily have to be realized in the compiler, but can be implemented in the runtime library. So the border between runtime library and standard library is up to the compiler manufacturer. Therefore a runtime library is always compiler-specific and platform-specific. In Computing, a platform describes some sort of Hardware architecture or Software framework (including Application frameworks, that allows
The concept of a runtime library should not be confused with an ordinary program library like created by an application programmer or delivered by a third party or a dynamic library, meaning a program library linked at run time. In Computer science, a library is a collection of Subroutines used to develop Software. For example, the programming language C requires only a very minimal runtime library, but defines a large standard library (called C Standard Library) that each implementation has to deliver. tags please moot on the talk page first! --> In Computing, C is a general-purpose cross-platform block structured A standard library for a Programming language is the library that is conventionally made available in every implementation of that language The C standard library (also known as libc) is a now-standardized collection of Header files and library routines used to implement common operations such
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