August 2005
Intermediate to advanced
432 pages
9h 41m
English
Content preview from Beyond the C++ Standard Library: An Introduction to Boost
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Library 11. Function
How Does the Function Library Improve Your Programs?
• Stores function pointers and function objects for subsequent invocation
The need to store functions and function objects is common in designs with callbacks, and where functions or classes are configured with custom functionality through either function pointers or function objects. Traditionally, function pointers have been used to accommodate the need for both callbacks and delayed functions. However, using only function pointers is too limiting, and what would be better is a generalized mechanism that defines the signature of the function to be stored, and leaves it up to the caller to decide which type of function-like entity (function pointer or function object) ...
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