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Squashed 'externals/mp/' changes from 29cb5588d..649fde1e8

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649fde1e8 typelist: Add drop
5efe868da travis: Drop GCC 7 from CI
c3f890f17 Update to use new metavalue types
c4dd1c9b9 metavalue: Add some common operations
7da45c71b Remove unnecessary public keyword for struct inheritance
287d8e7ec Correct typos in file headers

git-subtree-dir: externals/mp
git-subtree-split: 649fde1e814f9ce5b04d7ddeb940244d9f63cb2f
This commit is contained in:
MerryMage 2020-04-22 21:06:56 +01:00
parent 7b0c47d3f0
commit 1925d4dcc6
22 changed files with 460 additions and 24 deletions
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README.md
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@ -53,14 +53,15 @@ A metavalue is a type of template `std::integral_constant`.
### Constants
* [`std::true_type`](https://en.cppreference.com/w/cpp/types/integral_constant)
* [`std::false_type`](https://en.cppreference.com/w/cpp/types/integral_constant)
* mp::true_type: Aliases to [`std::true_type`](https://en.cppreference.com/w/cpp/types/integral_constant)
* mp::false_type: Aliases to [`mp::false_type`](https://en.cppreference.com/w/cpp/types/integral_constant)
### Constructor
* [`std::integral_constant`](https://en.cppreference.com/w/cpp/types/integral_constant)
* [`std::bool_constant`](https://en.cppreference.com/w/cpp/types/integral_constant)
* `mp::lift_value`: Lifts a value to become a metavalue
* mp::value: Aliases to [`std::integral_constant`](https://en.cppreference.com/w/cpp/types/integral_constant)
* mp::bool_value: Aliases to [`std::bool_constant`](https://en.cppreference.com/w/cpp/types/integral_constant)
* mp::size_value: Constructs a metavalue with value of type std::size_t
* `mp::lift_value`: Lifts a value of any arbitrary type to become a metavalue
### Conversions
@ -69,9 +70,18 @@ A metavalue is a type of template `std::integral_constant`.
### Operations
* `mp::value_equal`: Compares value equality, ignores type. Use `std::is_same` for strict comparison.
* [`std::negation`](https://en.cppreference.com/w/cpp/types/negation)
* [`std::conjunction`](https://en.cppreference.com/w/cpp/types/conjunction)
* [`std::disjunction`](https://en.cppreference.com/w/cpp/types/disjunction)
* `mp::logic_if`: Like std::conditional but has a bool metavalue as first argument.
* `mp::bit_not`: Bitwise not
* `mp::bit_and`: Bitwise and
* `mp::bit_or`: Bitwise or
* `mp::bit_xor`: Bitwise xor
* `mp::logic_not`: Logical not
* `mp::logic_and`: Logical conjunction (no short circuiting, always results in a mp:bool_value)
* `mp::logic_or`: Logical disjunction (no short circuiting, always results in a mp:bool_value)
* `mp::conjunction`: Logical conjunction (with short circuiting, preserves type)
* `mp::disjunction`: Logical disjunction (with short circuiting, preserves type)
* `mp::sum`: Sum of values
* `mp::product`: Product of values
`metafunction`
--------------