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reference front()
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< p > Return a reference to the first element. < / p >
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< p > Return a reference to the first element. < / p >
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const_reference front() const
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< p > Return a const reference to the first element. < / p >
< p > The return value can't be used to update the element. < / p >
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< h3 class = "title" > < a id = "id3597478" > < / a > Group: Element access functions.< / h3 >
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< p > The operator[] and < a class = "link" href = "stldb_vectorat.html" title = "at" > at()< / a >
only come from std::vector and std::deque, If you are using < a class = "link" href = "db_vector.html" title = "Chapter > db_vector< / a >
as std::list, you don't have to set DB_RENUMBER flag to the backing database handle, and you get better performance, but at the same time you can't use these functions.< / p >
< p > Otherwise if you have set the DB_RENUMBER flag to the backing database handle, you can use this function though it is an std::list equivalent. < / p >
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