Clarify result of lower_bound

The previous formulation made it sound like the return value is always `last` if `val` is not in the range, which might lead to confusion.
This commit is contained in:
kugelrund 2018-05-26 10:03:29 +02:00 committed by GitHub
parent 4af8321e91
commit dea3b94f12
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23

View File

@ -13160,7 +13160,7 @@ needed information back to the caller. Therefore, the standard library also offe
template <class ForwardIterator, class T>
ForwardIterator lower_bound(ForwardIterator first, ForwardIterator last, const T& val);
`lower_bound` returns an iterator to the first match if any, otherwise `last`.
`lower_bound` returns an iterator to the first match if any, otherwise to the first element greater than `val`, or `last` if no such element is found.
However, `lower_bound` still doesn't return enough information for all uses, so the standard library also offers