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The nm command identifies weak symbols in object files, libraries, and executables. On Linux a weak function symbol is marked with "W" if a weak default definition is available, and with "w" if it is not.
In the C++ programming language, a reference is a simple reference datatype that is less powerful but safer than the pointer type inherited from C. The name C++ reference may cause confusion, as in computer science a reference is a general concept datatype, with pointers and C++ references being specific reference datatype implementations.
In computer programming, a weak reference is a reference that does not protect the referenced object from collection by a garbage collector, unlike a strong reference.An object referenced only by weak references – meaning "every chain of references that reaches the object includes at least one weak reference as a link" – is considered weakly reachable, and can be treated as unreachable and ...
C++ began as a fork of an early, pre-standardized C, and was designed to be mostly source-and-link compatible with C compilers of the time. [ 1 ] [ 2 ] Due to this, development tools for the two languages (such as IDEs and compilers ) are often integrated into a single product, with the programmer able to specify C or C++ as their source language.
In computer science, link time refers to the period of time, during the creation of a computer program, in which a linker is being applied to that program. [ 1 ] [ 2 ] [ 3 ] Link time occurs after compile time and before runtime (when a program is executed ).
Auto-linking is a mechanism for automatically determining which libraries to link to while building a C, C++ or Obj-C program. It is activated by means of #pragma comment(lib, <name>) statements in the header files of the library, or @import <name> , depending on the compiler.
While version 2.1 of the LGPL was a standalone licence, the current LGPL version 3 is based on a reference to the GPL.. Compared to the GNU Classpath license above, the LGPL formulates more requirements to the linking exception: licensees must allow modification of the portions of the library they use and reverse engineering (of their software and the library) for debugging such modifications.
A linker or link editor is a computer program that combines intermediate software build files such as object and library files into a single executable file such a program or library. A linker is often part of a toolchain that includes a compiler and/or assembler that generates intermediate files that the linker processes.