Questions tagged [marray]
8 questions
13
votes
1 answer
How to properly optimize MArray functions for speed?
I'm working on a sorting library for MArrays. Speed is important, so I want to optimize it as much as possible.
Currently, I simply INLINE the sorting functions. This speeds up the code more than 10 times, compared to the non-optimized code. However…
Petr
- 62,528
- 13
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10
votes
2 answers
How to create unboxed mutable array instance
let's say I've got the following type :
data MyType = Constructor0 | Constructor1 | Constructor2
deriving (Eq,Show,Enum)
Is there a way to create one of such instances :
MArray (STUArray s) MyType (ST s)
MArray IOUarray MyType IO
For…
Raoul Supercopter
- 5,076
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6
votes
1 answer
Revisiting Polymorphic STUArrays with Constraint Kinds
I want to implement a dynamic programming algorithm polymorphic in the score type; here's a simplified 1D version with no boundary conditions:
{-# LANGUAGE ConstraintKinds, FlexibleContexts, RankNTypes, ScopedTypeVariables #-}
import…
Zorn
- 73
- 6
5
votes
1 answer
Slicing an IOArray (or MArray in general)
Is there a way how efficiently to construct a slice (a sub-array view) out of an IOArray, or MArray in general? That is, taking the same array, just restricting the bounds. The signature could be
(MArray a e m, Ix i) => a i e -> i -> i -> m (a i…
Petr
- 62,528
- 13
- 153
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3
votes
2 answers
MArray specialization to STArray
I am confused about using the STArray in Haskell with polymorphism.
Suppose I have the following setup
data SomeData a = Something a
thawData :: MArray u a m => SomeData a -> m (u Int a)
thawData = {- doesn't matter -}
doSomething :: SomeData a ->…
Joseph Victor
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1
vote
1 answer
Intel C++ compiler can't handle deep templates?
I have a project in C++ using marray library. For now it compiles and runs quite fine with MinGW g++ 4.7 and msvc2010 on Windows 7 x64 and also with g++ 4.7 on Linux Mint x64. I decided to give a try to Intel C++ compiler v. 12.1.4 for Linux. It was…
Dmitry
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1
vote
1 answer
"Could not deduce (MArray (STUArray s) Int (ST s)) from context ()" when applying runST
I'm in the process of learning haskell and came across this problem:
Using Glasgow Haskell Compiler, Version 6.10.4, for Haskell 98, stage 2 booted by GHC version 6.10.1
Common beginning of the file
{-# LANGUAGE FlexibleContexts #-}
module UPSO…
Christian Klauser
- 4,416
- 3
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-1
votes
1 answer
Docusign API with my applicaiton for insession signing process
I want to integrate docusign with my application and its work Like the linked given below.
how i will do that where user directed sign the my applicaiton generated documents and return back to my application.
"http://loancosample.azurewebsites.net"
Abhi
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- 5