All Questions
6 questions
1
vote
1
answer
261
views
Use the value of strongly typed enum as index in boost::mpl::map
I am using a C++ map structure defined similar to std::map<Foo, std::any> for storing attributes of a compiler symbol table. The Foo is a strongly typed enum, such as enum class Foo {ENUM}. ...
- 75
3
votes
3
answers
501
views
Cartesian product of multiple templates
I have a few classes:
template <int,char>
class Foo{};
template <int,char>
class Bar{};
And I want to get all combinations with a few arguments, like this:
// {1, 2}, {'a', 'b'}
using ...
- 664
1
vote
1
answer
227
views
Compile-time Size of Struct Minus Padding
I'm trying to use Boost MPL and Fusion to calculate the size of a struct exclusive of any padding. This is my current best attempt:
Live example
template<class T>
constexpr std::size_t ...
- 191
0
votes
1
answer
237
views
Does std::variant provide functionality similar to boost::variant<>::types?
boost::variant exposes its list of variant types via boost::variant<>::types, which can be conveniently used with boost::mpl::for_each. std::variant is missing such a member.
I see std::...
- 1,507
0
votes
1
answer
1k
views
Replacing Boost MPL containers with C++17 features
I have some old code based on MPL containers, using enable_if to to activate some dispatch like this:
typedef boost::mpl::vector<std::int16_t, std::int32_t, int64_t, float, double, std::complex<...
- 22k
4
votes
1
answer
254
views
Boost MPL Sorting Template Parameter Pack
The problem I'm trying to solve is to sort a template parameter pack according to the return value of a constexpr templated function specialized for each of the types I'm sorting.
I have a list of ...
- 149