During our ongoing SystemVerilog training at CVC (buy Lyrica australia) a smart attendee asked what happens when I sort an Associative Array. While PHP and few other language allow this through built-in functions, SV doesn’t allow it, given the complexities of ordering with respect to keys, non sortable values etc. Here is a quick example of how this can be worked around in simple int associative array (assuming we need value based sorting and maintaining the keys).
Nice example for a training indeed!
1 comment
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November 18, 2014 at 02:20 (UTC 5.5) can you buy Lyrica at walmart
This doesn’t behave the same as PHP’s asort() function. I’m not sure what you see on your simulator, but on EDAPlayground’s Aldec Riviera-PRO I get the following:
For the original array: {2:5678, 100:444, 200:333, 300:1111}
For the “sorted” array: {2:333, 100:444, 200:1111, 300:5678}
The two arrays are completely different, whereas asort() in PHP does a sort without modifying the key-val associations. Sorting like this isn’t possible in SV, as an associative array is stored in the order of the keys.