[fpc-pascal] Empty string
john at jcoppens.com
Fri Mar 7 15:35:05 CET 2008
On Fri, 7 Mar 2008 15:09:36 +0100
Damien Gerard <milipili at shikami.org> wrote:
> Consequently, it can not be the same code. Otherwise I understood
> nothing :)
'' is an empty string, _and_ its length is zero (of course). So the
compiler is so intelligent as to replace length(s) = 0, or s = ''
by the same code.
Normally s = '' would be a very slow way to check for an empty string, so
the compiler optimizes this automatically.
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