length
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## length

### Function Details

    static size_t length(const T *seq)

Returns the number of elements in sequence seq1.

Note that seq1 may or may not end with a trailing '', it is completely user's responsibility for this decision, though seq[0], seq[1],... seq[length - 1] are all sequence seq's memory.

### Group: Interface compatible with std::string's char_traits.

Following are char_traits funcitons, which make this class char_traits compatiable, so that it can be used in std::basic_string template, and be manipulated by the c++ stl algorithms.

### Class

DbstlElemTraits

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