Re: "Constant" performance question

On 18/02/2010, at 6:52 AM, Paul Jackson wrote:

if you had to compare a value to
see if it was 0602 multiple times I would expect the named constant to
be more efficient because the system does not have to check each time
for content change unlike with the data structure subfield.

What makes you think the compiler generates code to check if the content has changed? Surely it would be simpler to just compare against the current value (changed or otherwise)?

As far as I know there is no difference in efficiency at run-time--and if there were it would likely be so small as to be truly insignificant even over multiple iterations.

Regards,
Simon Coulter.
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