Code snippet saver11/19/2022 ![]() The only prerequisite is that access to the elements occur in perfect ascending order. It was largely inspired by std::map’s insert method which provides a very similar mechanism. This allows the caller to chain all necessary search operations in such a way to scan the primary array no more than once for the entire sequence of search operations. A position hint object stores the last position of the block that was either accessed or modified by the call. Most of multi_type_vector’s methods return a position hint which can be used for the next search operation. To alleviate this, multi_type_vector provides the concept of position hints, which allows the caller to start the search from block N where N > 0. Of course, sometimes one has to perform repeated searches to access a number of element values across a number of element blocks, in which case, always starting the search from the first block, or block 0, in every single search can be prohibitively expensive, especially when the vector is heavily fragmented. #Code snippet saver updateThe reason for not storing the logical positions of the blocks was to avoid having to update them after shifting the blocks after value insertion, which is quite common when editing spreadsheet documents. The following diagram depicts the structure of multi_type_vector’s internal store as of 1.5.0: So the only way to find the right element block that intersects the logical position of a value is to scan from the first block and keep accumulating the sizes of the encountered blocks. This was because each block structure, though it stores the size of the element block, does not store its logical position. Up to version 1.5.0, this mapping process involved a linear search that always starts from the first block of the primary array. This primary array maps a logical position of a value to the actual block structure that stores it. Internally, multi_type_vector creates multiple element blocks which are in turn stored in its parent array (primary array) as block structures. ![]() Calc uses this structure as its cell value store, and each instance of this value store represents a single column instance. LibreOffice Calc is one primary user of this. One of the data structures included in mdds, called multi_type_vector, stores values of different types in a single logical vector. The benchmark was done to measure the impact of the change I made recently to improve the performance on block searches, which will affect a major part of its functionality. Thank you for using TechWelkin.In this post, I’m going to share the results of some benchmark testing I have done on multi_type_vector, which is included in the mdds library. ![]() #Code snippet saver freePlease feel free to ask any questions on this tutorial. #Code snippet saver codeSo, did you find this MS Word tips useful? Whenever you would need to insert a code snippet with syntax highlight in MS Word document, I am sure it will save you a lot of time. Formatting changes in the main document do not affect the code block.Code remains in it’s original format and syntax highlights. And obviously, it’s easier, quicker method.It is of great help because a lot of programming keywords are not found in dictionary, and as a result such code may result in lots of red and green wavy lines. Spelling and grammar mistakes will not be highlighted by MS Word in the embedded code snippet.Code and main document remain separate from each other (programmers love this approach, don’t they?).Advantages of Embedding Code Snippets with Syntax HighlightsĪlthough you can always manually highlight various portions of a code snippet in MS Word, but there are many distinctive advantage of using the embedded object method: ![]()
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