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Db_vector < / th >
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< h2 class = "title" style = "clear: both" > < a id = "stldb_vectoroperator_sqbrk" > < / a > operator[]< / h2 >
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reference operator[](index_type n)
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< p > Index operator, can act as both a left value and a right value. < / p >
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< h4 class = "title" > < a id = "id3597332" > < / a > Parameters< / h4 >
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< h5 class = "title" > < a id = "id3597487" > < / a > n< / h5 >
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< p > The valid index of the vector. < / p >
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< h4 class = "title" > < a id = "id3597437" > < / a > Return Value< / h4 >
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< p > The reference to the element at specified position. < / p >
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const_reference operator[](index_type n) const
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< p > Read only index operator. < / p >
< p > Only used as a right value, no need for assignment capability. The return value can't be used to update the element. < / p >
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< h5 class = "title" > < a id = "id3597529" > < / a > n< / h5 >
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< p > The valid index of the vector. < / p >
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< h4 class = "title" > < a id = "id3597446" > < / a > Return Value< / h4 >
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< p > The const reference to the element at specified position. < / p >
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< h3 class = "title" > < a id = "id3597316" > < / 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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