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I need to construct a crawler working with
front_queues
and
back_queues
, which are vectors of queues. I've seen solutions in this question
Vector of queues
but my compiler complains the
vec
needs a constructor.
#include <vector>
#include <queue>
using namespace std;
vector<queue<int> > vec;
vec.push_back( queue<int>(0) );
// error: expected constructor, destructor, or type conversion before ‘.’ token
queuedoesn't have initializer list :
According to queue's constructor reference (Source), you can't use queue<int>(0) because no proper constructor would match.
However, you can use queue<int>(). It will create an empty queue.
Take a look at this online example : https://ideone.com/RbT1pD
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