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concepts: add cbegin/cend requirements to iterable

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This commit is contained in:
Danny Robson 2020-03-12 12:44:42 +11:00
parent 0c199eaf44
commit 7550ad7c23
1 changed files with 4 additions and 2 deletions
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6
concepts.hpp
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@ -293,8 +293,10 @@ namespace cruft::concepts {
template <typename T>
concept iterable = requires (T t)
{
{ std::begin (t) } -> legacy_iterator;
{ std::end (t) } -> legacy_iterator;
{ std::begin (t) } -> legacy_iterator;
{ std::end (t) } -> legacy_iterator;
{ std::cbegin (t) } -> legacy_iterator;
{ std::cend (t) } -> legacy_iterator;
};