Technical Report 1
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Technical Report 1 (TR1) is a draft document specifying additions to the C++ Standard Library such as regular expressions, smart pointers, hash tables, and random number generators. TR1 is not yet standardized, but likely will be part of the next official standard mostly as it stands now. In the meantime, vendors can use this document as a guide to create extensions. The report's goal is "to build more widespread existing practice for an expanded C++ standard library."[link]
Overview
Compilers need not include the TR1 components to be conforming, as TR1 is not yet officially part of the standard. Much of it is available from Boost, and several compiler/library distributors currently implement all or part of the components.
TR1 is not a complete list of additions to the library that will appear in the next standard; for example, the next standard, C++0x, may include support for threading. There is also a second technical report, TR2, planned [link].
The new components are in the std::tr1 namespace to distinguish them from the current standard library.
Components
TR1 includes the following components:
General Utilities
Reference Wrapper
- lifted from Boost.Ref [link]
- additions to the
cref,ref,reference_wrapper - enables passing references, rather than copies, into algorithms or function objects
Smart Pointers
- based on Boost Smart Pointer library [link]
- additions to the
shared_ptr,weak_ptr, etc - utility for memory management and exception safety using the Resource Acquisition Is Initialization (RAII) idiom
These four modules are added to the
function- based on Boost.Function [link]
- allows for higher order programming and function object manipulation
Function Object Binders
bind- taken from Boost Bind library [link]
- generalized version of the standard
std::bind1st and std::bind2nd - binds parameters to function objects
Function Return Types
result_of - taken from Boost
- determines the type of a call expression
mem_fn
mem_fn- based on Boost Mem Fn library [link]
- enhancement to the standard
std::mem_fun and std::mem_fun_ref - allows pointers to member functions to be treated as objects
Numerical Facilities
Random Number Generation
- new
variate_generator, mersenne_twister, poisson_distribution, etc - utilities for generating random numbers using various engines and probability distributions
Mathematical Functions
Fixed Size
- new
array - lifted from Boost Array library [link]
- as opposed to dynamic array types such as the standard
std::vector
Hash Tables
- new
- new implementation, not derived from an existing library, not fully API compatible with existing libraries
- like all hash tables, often provide constant time lookup of elements but the worst case can be linear in the size of the container
Regular Expressions
- new
regex, regex_match, regex_search, regex_replace, etc - based on Boost RegEx library [link]
- pattern matching library
C Compatibility
C++ is designed to be compatible with the C programming language, but is not a strict superset of C due to diverging standards. TR1 attempts to reconcile some of these differences through additions to various headers in the C++ library, such as , , , etc. These changes help to bring C++ more in line with the C99 version of the C standard (not all parts of C99 are included in TR1).See also
- Boost library, a large collection of portable C++ libraries, several of which were included in TR1
- Standard Template Library, part of the current C++ Standard Library
- Dinkumware, the only commercial vendor to fully implement TR1
External links
- http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2005/n1836.pdf - pdf of the Proposed Draft
- http://aristeia.com/EC3E/TR1_info_frames.html - Scott Meyers' TR1 page, links to documents and articles
From Wikipedia, the Free Encyclopedia. Original article here. Support Wikipedia by contributing or donating.
All text is available under the terms of the GNU Free Documentation License See Wikipedia Copyrights for details.
function- based on Boost.Function [link]
- allows for higher order programming and function object manipulation
Function Object Binders
bind- taken from Boost Bind library [link]
- generalized version of the standard
std::bind1standstd::bind2nd - binds parameters to function objects
Function Return Types
result_of- taken from Boost
- determines the type of a call expression
mem_fn
mem_fn- based on Boost Mem Fn library [link]
- enhancement to the standard
std::mem_funandstd::mem_fun_ref - allows pointers to member functions to be treated as objects
Numerical Facilities
Random Number Generation
- new
variate_generator, mersenne_twister, poisson_distribution, etc - utilities for generating random numbers using various engines and probability distributions
Mathematical Functions
Fixed Size
- new
array - lifted from Boost Array library [link]
- as opposed to dynamic array types such as the standard
std::vector
Hash Tables
- new
- new implementation, not derived from an existing library, not fully API compatible with existing libraries
- like all hash tables, often provide constant time lookup of elements but the worst case can be linear in the size of the container
Regular Expressions
- new
regex, regex_match, regex_search, regex_replace, etc - based on Boost RegEx library [link]
- pattern matching library
C Compatibility
C++ is designed to be compatible with the C programming language, but is not a strict superset of C due to diverging standards. TR1 attempts to reconcile some of these differences through additions to various headers in the C++ library, such as , , , etc. These changes help to bring C++ more in line with the C99 version of the C standard (not all parts of C99 are included in TR1).See also
- Boost library, a large collection of portable C++ libraries, several of which were included in TR1
- Standard Template Library, part of the current C++ Standard Library
- Dinkumware, the only commercial vendor to fully implement TR1
External links
- http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2005/n1836.pdf - pdf of the Proposed Draft
- http://aristeia.com/EC3E/TR1_info_frames.html - Scott Meyers' TR1 page, links to documents and articles
From Wikipedia, the Free Encyclopedia. Original article here. Support Wikipedia by contributing or donating.
All text is available under the terms of the GNU Free Documentation License See Wikipedia Copyrights for details.
variate_generator, mersenne_twister, poisson_distribution, etc
Fixed Size
- new
array - lifted from Boost Array library [link]
- as opposed to dynamic array types such as the standard
std::vector
Hash Tables
- new
- new implementation, not derived from an existing library, not fully API compatible with existing libraries
- like all hash tables, often provide constant time lookup of elements but the worst case can be linear in the size of the container
Regular Expressions
- new
regex, regex_match, regex_search, regex_replace, etc - based on Boost RegEx library [link]
- pattern matching library
C Compatibility
C++ is designed to be compatible with the C programming language, but is not a strict superset of C due to diverging standards. TR1 attempts to reconcile some of these differences through additions to various headers in the C++ library, such as , , , etc. These changes help to bring C++ more in line with the C99 version of the C standard (not all parts of C99 are included in TR1).See also
- Boost library, a large collection of portable C++ libraries, several of which were included in TR1
- Standard Template Library, part of the current C++ Standard Library
- Dinkumware, the only commercial vendor to fully implement TR1
External links
- http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2005/n1836.pdf - pdf of the Proposed Draft
- http://aristeia.com/EC3E/TR1_info_frames.html - Scott Meyers' TR1 page, links to documents and articles
From Wikipedia, the Free Encyclopedia. Original article here. Support Wikipedia by contributing or donating.
All text is available under the terms of the GNU Free Documentation License See Wikipedia Copyrights for details.
- new
array - lifted from Boost Array library [link]
- as opposed to dynamic array types such as the standard
std::vector
Hash Tables
- new
- new implementation, not derived from an existing library, not fully API compatible with existing libraries
- like all hash tables, often provide constant time lookup of elements but the worst case can be linear in the size of the container
Regular Expressions
- new
regex,regex_match,regex_search,regex_replace, etc - based on Boost RegEx library [link]
- pattern matching library
C Compatibility
C++ is designed to be compatible with the C programming language, but is not a strict superset of C due to diverging standards. TR1 attempts to reconcile some of these differences through additions to various headers in the C++ library, such asSee also
- Boost library, a large collection of portable C++ libraries, several of which were included in TR1
- Standard Template Library, part of the current C++ Standard Library
- Dinkumware, the only commercial vendor to fully implement TR1
External links
- http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2005/n1836.pdf - pdf of the Proposed Draft
- http://aristeia.com/EC3E/TR1_info_frames.html - Scott Meyers' TR1 page, links to documents and articles
From Wikipedia, the Free Encyclopedia. Original article here. Support Wikipedia by contributing or donating.
All text is available under the terms of the GNU Free Documentation License See Wikipedia Copyrights for details.