January 21, 2008 Templates and Associative Arrays | ||||
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Is it possible to create a template function that treats regular dynamic arrays the same as associative arrays? For example, I want to create a very simple template function to extract a column from a 2-d array of T's. If the array is non-associative in both dimensions, the function could be trivially implemented as: T[] extract_column(T)(T[][] data, size_t column_to_extract) { T[] extracted_column; foreach(row; data) { extracted_column~=row[column_to_extract]; } return extracted_column; } However, in the case of an associatve array, I cannot think of any obvious way to make this work without essentially implementing it four different times, once each for an associative and non-associative row dimension and likewise for the column dimension. |
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