What is an adaptor in the C++ standard? How does it relate to the adapter design pattern?
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The C++ standard uses the word adaptors several times:
- Allocator adaptors (
std::scoped_allocator_adaptor) - Container adaptors (
std::queue,std::priority_queue,std::stack) - Iterator adaptors (
std::reverse_iterator,std::move_iterator)
It does not seem that the word itself is defined in the standard. I was thinking that the word was used in reference to design patterns, but it seems that in the adapter design pattern, the adapter should only adapt the interface, not the behavior.
Questions: Therefore I was wondering:
- What would be the approximate definition of an adaptor in the C++ standard?
- Does it correspond to the adapter design pattern?
- If not, what would be the design pattern that matches the best what an adaptor is in the C++ standard (adapter, proxy, facade, decorator...)?
c++ design-patterns adapter standards c++-standard-library
asked Nov 16 '18 at 18:35
VincentVincent
20.9k39135299
add a comment |
The C++ standard uses the word adaptors several times:
- Allocator adaptors (
std::scoped_allocator_adaptor) - Container adaptors (
std::queue,std::priority_queue,std::stack) - Iterator adaptors (
std::reverse_iterator,std::move_iterator)
It does not seem that the word itself is defined in the standard. I was thinking that the word was used in reference to design patterns, but it seems that in the adapter design pattern, the adapter should only adapt the interface, not the behavior.
Questions: Therefore I was wondering:
- What would be the approximate definition of an adaptor in the C++ standard?
- Does it correspond to the adapter design pattern?
- If not, what would be the design pattern that matches the best what an adaptor is in the C++ standard (adapter, proxy, facade, decorator...)?
c++ design-patterns adapter standards c++-standard-library
asked Nov 16 '18 at 18:35
VincentVincent
20.9k39135299
2
I suspect most of those predates the book of 4 book that coined the name.
– Yakk - Adam Nevraumont
Nov 16 '18 at 18:38
facade might be best. It implements a particular interface on top of an already defined thing.
– NathanOliver
Nov 16 '18 at 18:39
Fun Fact: we see the same phenomenon in the Java world with old classes like MouseAdapter. A sign of the times?
– jaco0646
Nov 16 '18 at 21:02
@jaco0646 I just looked into the old history of C++. The word adaptor for iterators was already used in 1994. For containers it's the case in 1995.
– Vincent
Nov 16 '18 at 22:04
add a comment |
The C++ standard uses the word adaptors several times:
- Allocator adaptors (
std::scoped_allocator_adaptor) - Container adaptors (
std::queue,std::priority_queue,std::stack) - Iterator adaptors (
std::reverse_iterator,std::move_iterator)
It does not seem that the word itself is defined in the standard. I was thinking that the word was used in reference to design patterns, but it seems that in the adapter design pattern, the adapter should only adapt the interface, not the behavior.
Questions: Therefore I was wondering:
- What would be the approximate definition of an adaptor in the C++ standard?
- Does it correspond to the adapter design pattern?
- If not, what would be the design pattern that matches the best what an adaptor is in the C++ standard (adapter, proxy, facade, decorator...)?
c++ design-patterns adapter standards c++-standard-library
asked Nov 16 '18 at 18:35
VincentVincent
20.9k39135299
The C++ standard uses the word adaptors several times:
- Allocator adaptors (
std::scoped_allocator_adaptor) - Container adaptors (
std::queue,std::priority_queue,std::stack) - Iterator adaptors (
std::reverse_iterator,std::move_iterator)
It does not seem that the word itself is defined in the standard. I was thinking that the word was used in reference to design patterns, but it seems that in the adapter design pattern, the adapter should only adapt the interface, not the behavior.
Questions: Therefore I was wondering:
- What would be the approximate definition of an adaptor in the C++ standard?
- Does it correspond to the adapter design pattern?
- If not, what would be the design pattern that matches the best what an adaptor is in the C++ standard (adapter, proxy, facade, decorator...)?
c++ design-patterns adapter standards c++-standard-library
c++ design-patterns adapter standards c++-standard-library
asked Nov 16 '18 at 18:35
VincentVincent
20.9k39135299
asked Nov 16 '18 at 18:35
VincentVincent
20.9k39135299
edited Nov 16 '18 at 18:51
Vincent
asked Nov 16 '18 at 18:35
VincentVincent
20.9k39135299
asked Nov 16 '18 at 18:35
VincentVincent
20.9k39135299
asked Nov 16 '18 at 18:35
VincentVincent
20.9k39135299
20.9k39135299
2
I suspect most of those predates the book of 4 book that coined the name.
– Yakk - Adam Nevraumont
Nov 16 '18 at 18:38
facade might be best. It implements a particular interface on top of an already defined thing.
– NathanOliver
Nov 16 '18 at 18:39
Fun Fact: we see the same phenomenon in the Java world with old classes like MouseAdapter. A sign of the times?
– jaco0646
Nov 16 '18 at 21:02
@jaco0646 I just looked into the old history of C++. The word adaptor for iterators was already used in 1994. For containers it's the case in 1995.
– Vincent
Nov 16 '18 at 22:04
add a comment |
2
I suspect most of those predates the book of 4 book that coined the name.
– Yakk - Adam Nevraumont
Nov 16 '18 at 18:38
facade might be best. It implements a particular interface on top of an already defined thing.
– NathanOliver
Nov 16 '18 at 18:39
Fun Fact: we see the same phenomenon in the Java world with old classes like MouseAdapter. A sign of the times?
– jaco0646
Nov 16 '18 at 21:02
@jaco0646 I just looked into the old history of C++. The word adaptor for iterators was already used in 1994. For containers it's the case in 1995.
– Vincent
Nov 16 '18 at 22:04
2
2
I suspect most of those predates the book of 4 book that coined the name.
– Yakk - Adam Nevraumont
Nov 16 '18 at 18:38
I suspect most of those predates the book of 4 book that coined the name.
– Yakk - Adam Nevraumont
Nov 16 '18 at 18:38
facade might be best. It implements a particular interface on top of an already defined thing.
– NathanOliver
Nov 16 '18 at 18:39
facade might be best. It implements a particular interface on top of an already defined thing.
– NathanOliver
Nov 16 '18 at 18:39
Fun Fact: we see the same phenomenon in the Java world with old classes like MouseAdapter. A sign of the times?
– jaco0646
Nov 16 '18 at 21:02
Fun Fact: we see the same phenomenon in the Java world with old classes like MouseAdapter. A sign of the times?
– jaco0646
Nov 16 '18 at 21:02
@jaco0646 I just looked into the old history of C++. The word adaptor for iterators was already used in 1994. For containers it's the case in 1995.
– Vincent
Nov 16 '18 at 22:04
@jaco0646 I just looked into the old history of C++. The word adaptor for iterators was already used in 1994. For containers it's the case in 1995.
– Vincent
Nov 16 '18 at 22:04
add a comment |
1 Answer
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The word "adapter" is not used in some technical, design-pattern sense. It is used as the English word: a thing that adapts. There is no need for a more rigorous definition than that.
Container adapters modify the interface of containers. Iterator adapters modify the interface of iterators. And so forth. You're really overthinking the whole thing.
answered Nov 16 '18 at 18:39
Nicol BolasNicol Bolas
292k34483660
add a comment |
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1 Answer
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The word "adapter" is not used in some technical, design-pattern sense. It is used as the English word: a thing that adapts. There is no need for a more rigorous definition than that.
Container adapters modify the interface of containers. Iterator adapters modify the interface of iterators. And so forth. You're really overthinking the whole thing.
answered Nov 16 '18 at 18:39
Nicol BolasNicol Bolas
292k34483660
add a comment |
The word "adapter" is not used in some technical, design-pattern sense. It is used as the English word: a thing that adapts. There is no need for a more rigorous definition than that.
Container adapters modify the interface of containers. Iterator adapters modify the interface of iterators. And so forth. You're really overthinking the whole thing.
answered Nov 16 '18 at 18:39
Nicol BolasNicol Bolas
292k34483660
add a comment |
The word "adapter" is not used in some technical, design-pattern sense. It is used as the English word: a thing that adapts. There is no need for a more rigorous definition than that.
Container adapters modify the interface of containers. Iterator adapters modify the interface of iterators. And so forth. You're really overthinking the whole thing.
answered Nov 16 '18 at 18:39
Nicol BolasNicol Bolas
292k34483660
The word "adapter" is not used in some technical, design-pattern sense. It is used as the English word: a thing that adapts. There is no need for a more rigorous definition than that.
Container adapters modify the interface of containers. Iterator adapters modify the interface of iterators. And so forth. You're really overthinking the whole thing.
answered Nov 16 '18 at 18:39
Nicol BolasNicol Bolas
292k34483660
answered Nov 16 '18 at 18:39
Nicol BolasNicol Bolas
292k34483660
answered Nov 16 '18 at 18:39
Nicol BolasNicol Bolas
292k34483660
answered Nov 16 '18 at 18:39
Nicol BolasNicol Bolas
292k34483660
292k34483660
add a comment |
add a comment |
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2
I suspect most of those predates the book of 4 book that coined the name.
– Yakk - Adam Nevraumont
Nov 16 '18 at 18:38
facade might be best. It implements a particular interface on top of an already defined thing.
– NathanOliver
Nov 16 '18 at 18:39
Fun Fact: we see the same phenomenon in the Java world with old classes like MouseAdapter. A sign of the times?
– jaco0646
Nov 16 '18 at 21:02
@jaco0646 I just looked into the old history of C++. The word adaptor for iterators was already used in 1994. For containers it's the case in 1995.
– Vincent
Nov 16 '18 at 22:04