jagged bidimensional arrays and contiguous memory in c#

Question

I have seen that declaring a bidimensional array as a jagged array is fine

int[][] jagged = new int[3][];

but when doing some optimization at memory level in code, it is more convenient to use [,] as a definition of a matrix and use blocks of memory...

so can you explain if this is true? I guess the [,] takes a block of memory and the access of elements is faster rather than lookimg in several parts of memory in a jagged bidimensional array....

I think you really want to read this http://stackoverflow.com/questions/597720/what-is-differences-between-multidimensional-array-and-array-of-arrays-in-c — m0s, Feb 04 '12 at 08:45

score 1 · Accepted Answer · answered Feb 04 '12 at 08:49

1

Yes, when an array is allocated as [,] , it is always given contiguous memory, so depending on what you want to do, it may be faster, convenient, etc

answered Feb 04 '12 at 08:49

logicnp

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jagged bidimensional arrays and contiguous memory in c#

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