Difference between revisions of "Col"
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== Syntax == | == Syntax == | ||
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== Semantics == | == Semantics == | ||
| − | In combination with the array, the programmer can specify whether allocation is row or column major. This allocation information is provided in the allocation type. | + | In combination with the array, the programmer can specify whether allocation is row or column major. This allocation information is provided in the allocation type. In column major allocation the first dimension is the least major and last dimension most major |
== Example == | == Example == | ||
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var a:array[Int,10,20] :: allocated[col[] :: multiple[]]; | var a:array[Int,10,20] :: allocated[col[] :: multiple[]]; | ||
| − | + | a[1][2]:=23; | |
| − | + | (a :: row)[1][2]:=23; | |
Where the array is column major allocation, but the programmer has overridden this (just for the assignment) in line 3. If one array of allocation copies to another array of different allocation then transposition will be performed automatically in order to preserve indexes. | Where the array is column major allocation, but the programmer has overridden this (just for the assignment) in line 3. If one array of allocation copies to another array of different allocation then transposition will be performed automatically in order to preserve indexes. | ||
Revision as of 17:08, 12 January 2013
Syntax
col[ ]
Semantics
In combination with the array, the programmer can specify whether allocation is row or column major. This allocation information is provided in the allocation type. In column major allocation the first dimension is the least major and last dimension most major
Example
var a:array[Int,10,20] :: allocated[col[] :: multiple[]]; a[1][2]:=23; (a :: row)[1][2]:=23;
Where the array is column major allocation, but the programmer has overridden this (just for the assignment) in line 3. If one array of allocation copies to another array of different allocation then transposition will be performed automatically in order to preserve indexes.
