marray | Fast Runtime-Flexible Multi | Performance Testing library

 by   bjoern-andres C++ Version: v3.1 License: No License

kandi X-RAY | marray Summary

kandi X-RAY | marray Summary

marray is a C++ library typically used in Testing, Performance Testing applications. marray has no bugs, it has no vulnerabilities and it has low support. You can download it from GitHub.

Marray: Fast Runtime-Flexible Multi-dimensional Arrays and Views in C++.
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              marray has a low active ecosystem.
              It has 43 star(s) with 21 fork(s). There are 8 watchers for this library.
              OutlinedDot
              It had no major release in the last 12 months.
              marray has no issues reported. There are 5 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of marray is v3.1

            kandi-Quality Quality

              marray has no bugs reported.

            kandi-Security Security

              marray has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

            kandi-License License

              marray does not have a standard license declared.
              Check the repository for any license declaration and review the terms closely.
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              Without a license, all rights are reserved, and you cannot use the library in your applications.

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              marray releases are available to install and integrate.

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            marray Key Features

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            marray Examples and Code Snippets

            No Code Snippets are available at this moment for marray.

            Community Discussions

            QUESTION

            Javascript/JSON count duplicate values and Parsein HTML
            Asked 2021-Mar-18 at 04:50

            The following code maps the JSON file and displays a comma list of unique AREAID values and displays it in:

            ...

            ANSWER

            Answered 2021-Mar-18 at 04:50

            For me, this api gives an error, so enter it manually

            Source https://stackoverflow.com/questions/66684731

            QUESTION

            LeakCanary not giving enough information to identify leak
            Asked 2021-Mar-15 at 08:49

            I'm using LeakCanary but the heap analysis result doesn't provide enough information to detect any leak. It only mentions that the activity is leaking.

            ...

            ANSWER

            Answered 2021-Mar-14 at 22:08

            Does the activity register any broadcast receiver? The leaktrace shows LoadedApk.mReceivers which is an ArrayMap of receivers to receiver dispatcher and the activity is the receiver dispatcher.

            Source https://stackoverflow.com/questions/66611127

            QUESTION

            RecyclerView↑ is leaking and View detached and has parent
            Asked 2021-Feb-25 at 03:03

            I have tried to set adapter null in onDestroyView also tried with addOnAttachStateChangeListener but still there is memory leak.

            Here is my Stack Trace

            ...

            ANSWER

            Answered 2021-Feb-25 at 03:03

            TopicFragment is in a created state, Fragment.mAnimationInfo retains a Fragment$AnimationInfo and Fragment$AnimationInfo.mFocusedView retains the fragments detached view which should have been GCed.

            This value is set by calls to Fragment.setFocusView(), and a quick search shows that's never ever cleared: https://cs.android.com/search?q=setFocusedView&sq=&ss=androidx%2Fplatform%2Fframeworks%2Fsupport

            Looks like this change was introduced in 2020: https://cs.android.com/androidx/platform/frameworks/support/+/1052c3662c40176f7f02da9e06b989dcab21d500

            The best would be to file an issue against the androidx fragments library.

            Actually this was already filed, fixed in the next release: https://issuetracker.google.com/issues/179925887

            Source https://stackoverflow.com/questions/66350771

            QUESTION

            Clang not detecting stack variable assignment to reference as unused
            Asked 2021-Jan-16 at 10:01

            I have Clang's -Wunused flag set but its failing to detect an assigned (but unused) stack variable.

            Below I create an instance of a typedef'd array on the stack, but never use it:

            ...

            ANSWER

            Answered 2021-Jan-16 at 10:01

            const ATypedefdArray arr = marray; will call copy constructor, and destructor will be called at end of scope.

            if both are trivial, then clang/gcc succeed to detect unused variable Demo.

            If any are non trivial, they might have side effects, and so are used. they might have expected side effect have some intentional RAII usage as std::lock_guard, or unintentional as std::string. so no warning Demo

            Source https://stackoverflow.com/questions/65746442

            QUESTION

            Understanding "size_t * a[]" argument in C and how does pointer-arguments works
            Asked 2021-Jan-01 at 12:03

            I'm new at C. Here is a function, one of its' proposes is to fill the sizes, and I have problems with it. I fill it correctly, but then, in perform(), where I call marray_read() from, sizes is filled with zeros.

            ...

            ANSWER

            Answered 2021-Jan-01 at 12:03

            You forgot to dereferce (*sizes):

            Source https://stackoverflow.com/questions/65529228

            QUESTION

            Is there a memmove/memcpy wrapper for STUArray?
            Asked 2020-Dec-25 at 18:53

            I'm switching a program from using MVector Word32 to STUArray Word Word32. In my vector code, I used unsafeMove to move vector slices around; thinking it was probably wrapping memmove for efficiency.

            ...

            ANSWER

            Answered 2020-Dec-25 at 18:53

            thinking it was probably wrapping memmove for efficiency

            First I decided to check for you whether this is actually true, and it is.

            • unsafeMove eventually boils down to the basicUnsafeCopy operation defined for MVector, which delegates to copyMutableArray.
            • copyMutableArray's implementation varies by GHC version. For old versions, it was just an IO loop in ordinary Haskell, but since 7.8 it has delegated to a primop copyMutableArray#.
            • copyMutableArray# is a wrapper around memmove and memcopy, depending whether the arrays overlap.

            I grepped through the source of Data.Array, and found no references to copyMutableArray. Another possibility would be that Data.Array exposes some way for you to view your STUArray as a MutableArray, and thereby call copyMutableArray yourself. But I also find no mention of MutableArray in Data.Array.

            My tentative conclusion is that there is no memmove/memcopy wrapper in Data.Array.

            Source https://stackoverflow.com/questions/65450395

            QUESTION

            Julia 1.5.2 Performance Questions
            Asked 2020-Nov-15 at 15:27

            I am currently attempting to implement a metaheuristic (genetic) algorithm. In this venture i also want to try and create somewhat fast and efficient code. However, my experience in creating efficient coding is not very great. I was therefore wondering if some people could give some "quick tips" to increase the efficiency of my code. I have created a small functional example of my code which contains most of the elements that the code will contain i regards to preallocating arrays, custom mutable structs, random numbers, pushing into arrays etc.

            The options that I have already attempted to explore are options in regards to the package "StaticArrays". However many of my arrays must be mutable (so we need MArrays) and many of them will become very large > 100. The documentation of StaticArrays specify that the size of the StaticArrays package must remain small to remain efficient.

            According to the documentation Julia 1.5.2 should be thread safe in regards to rand(). I have therefor attempted to multithread for-loops in my functions to make them run faster. And this results in a slight performance increase .

            However if people can se a more efficient way of allocating Arrays or pushing in SpotPrices into an array it would be greatly appreciated! Any other performance tips are also very welcome!

            ...

            ANSWER

            Answered 2020-Nov-15 at 15:27

            Have a look at read very carefully https://docs.julialang.org/en/v1/manual/performance-tips/

            Basic cleanups start with:

            1. Your SpotPrices struct does not need to me mutable. Anyway since there is only one field you could just define it as SpotPrices=Vector{Float64}
            2. You do not want untyped containers - instead of prices = [] do prices = Float64[]
            3. Using DataFrames.groupby will be much faster than finding unique elements and filtering by them
            4. If yo do not need initialze than do not do it Vector{Float64}(undef, sample_size) is much faster than zeros(sample_size, 24)
            5. You do not need to synchronize @sync before a multi-threaded loop
            6. Create a random states - one separate one for each thread and use them whenever calling the rand function

            Source https://stackoverflow.com/questions/64845551

            QUESTION

            C array to store the pointers of malloc'd arrays
            Asked 2020-Oct-31 at 06:05

            I'd like to store the pointers of two arrays (*a and *b) created by malloc in a function.

            For example, if &a[0]=0x0061FEC8 and &b[0]=0x007700FE, then the array to store these two pointers should be c[0]=0x0061FEC8 and c[1]=0x007700FE

            ...

            ANSWER

            Answered 2020-Oct-31 at 06:05

            If an array is int * then an array of arrays is int ** and if you want to return an array of arrays as an out parameter, then you need a pointer to that -- int ***. So you need to change the type of mArray as well as the ptrArray parameter:

            Source https://stackoverflow.com/questions/64618751

            QUESTION

            SQL Command not properly ended where I am trying to Use UNION function
            Asked 2020-Oct-11 at 12:24

            this is the code I wrote, and I have been getting the error.

            What I am trying to do is that Client have 2 child classes "CASUAL_JOB and CONTRACT_JOB" but these 2 classes have Client No (primary key of Client Table) under different Heading. So my target is to find total cost (info in Invoice Table) which is integrated with JobID (present in Invoice, Contract_Job, Contract_job Tables) and retrieve Client Info from Client Table

            (+) is for left Outer Joint

            ...

            ANSWER

            Answered 2020-Oct-11 at 11:00

            I formatted your code so it's readable. And by indenting it, you can see where the problem is. It's in line 6/7 in the "FROM" part. Oracle can't really figure out what you're trying to do with that statement and when the parser reaches the end of the query at "(+)", he tells you that there is something missing/awkward. That's why he tells you it's the "(+)". But the problem is earlier. It's the way your build your "FROM" part. It's a bit confusing, so here is just a pointers:

            when using "union", you don't give an alias to each of the two queries. The result set of both queries is "unioned", so you can't reference either of them in the "WHERE" part.

            You should rewrite your query and instead of joining Client with a Union, you should Union two separate queries: one joining Client with casual_jobs, one joining Client with contrac_job. Following example is done without testing it in an SQL tool:

            Source https://stackoverflow.com/questions/64302351

            QUESTION

            Why when I'm slicing this array in a nested for loop is it going on an infinite loop?
            Asked 2020-Sep-07 at 21:56

            newbie JavaScript question.

            This function is supposed to make a route cipher out of a given string.

            Why is this resulting in an infinite loop?

            ...

            ANSWER

            Answered 2020-Sep-07 at 21:31

            I think j+columns should be j+=columns. The equal sign is missing.

            Source https://stackoverflow.com/questions/63784481

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network

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            You can download it from GitHub.

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