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Joel de Guzman
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[/==============================================================================
Copyright (C) 2001-2007 Joel de Guzman, Dan Marsden, Tobias Schwinger
Use, modification and distribution is subject to the Boost Software
License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
http://www.boost.org/LICENSE_1_0.txt)
===============================================================================/]
[section Preface]
[:['["Algorithms + Data Structures = Programs.]]]
@ -13,32 +20,32 @@ as sequences, and Fusion has a suite of algorithms that operate upon the
various sequence types, using an iterator concept that binds everything
together.
The architecture is modeled after __mpl__ which in turn is modeled after
__stl__. It is named "fusion" because the library is a "fusion" of compile
time metaprogramming with runtime programming.
The architecture is modeled after __mpl__ which in turn is modeled after
__stl__. It is named "fusion" because the library is a "fusion" of compile
time metaprogramming with runtime programming.
[heading Motivation]
Tuples are powerful beasts. After having developed two significant projects
Tuples are powerful beasts. After having developed two significant projects
(__spirit__ and __phoenix__) that relied heavily metaprogramming, it
became apparent that tuples are a powerful means to simplify otherwise tricky
tasks; especially those that require a combination of metaprogramming and
manipulation of heterogenous data types with values. While __mpl__ is an
extremely powerful metaprogramming tool, __mpl__ focuses on type
manipulation only. Ultimately, you'll have to map these types to real
values to make them useful in the runtime world where all the real action
takes place.
became apparent that tuples are a powerful means to simplify otherwise tricky
tasks; especially those that require a combination of metaprogramming and
manipulation of heterogenous data types with values. While __mpl__ is an
extremely powerful metaprogramming tool, __mpl__ focuses on type
manipulation only. Ultimately, you'll have to map these types to real
values to make them useful in the runtime world where all the real action
takes place.
As __spirit__ and __phoenix__ evolved, patterns and idioms related to tuple
manipulation emerged. Soon, it became clear that those patterns and idioms
were best assembled in a tuples algorithms library. __david_abrahams__
outlined such a scheme in 2002. At that time, it just so happened that
__spirit__ and __phoenix__ had an adhoc collection of tuple manipulation
As __spirit__ and __phoenix__ evolved, patterns and idioms related to tuple
manipulation emerged. Soon, it became clear that those patterns and idioms
were best assembled in a tuples algorithms library. __david_abrahams__
outlined such a scheme in 2002. At that time, it just so happened that
__spirit__ and __phoenix__ had an adhoc collection of tuple manipulation
and traversal routines. It was an instant /AHA!/ moment.
[heading How to use this manual]
Some icons are used to mark certain topics indicative of their relevance.
Some icons are used to mark certain topics indicative of their relevance.
These icons precede some text to indicate:
[table Icons