Hello!
I have a question about how stl's insert works on containers and on
vector in particular.
The question is: is it OK to insert a value before end() with something
like:
vector<int> v;
v.insert(v.end( ), 1);
In SGI's stl documentation it says that the iterator passed to insert
must be a valid iterator in v. Is end() a valid operator or must an
iterator be derefernceable in order to be valid?
Regards,
Mattias
1  1900 
"Mattias B" <br****@ludd.lu th.se> wrote... I have a question about how stl's insert works on containers and on
vector in particular.
The question is: is it OK to insert a value before end() with something
like:
vector<int> v;
v.insert(v.end( ), 1);
Yes, it is OK. BTW, that's "push_back" s operational semantics
for 'vector', 'list', and 'deque'.
In SGI's stl documentation it says that the iterator passed to insert
must be a valid iterator in v. Is end() a valid operator or must an
iterator be derefernceable in order to be valid?
No, to be valid an iterator has to be either _to_ an element or
"one past the end". That makes 'end()' a valid iterator, AFAIK.
Victor This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
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