On 2020-09-22 14:46, dano none via fpc-pascal wrote:
Hello,
I have a basic shuffle routine. I put being, end statements in the
outer loop for clarification.
It ended up producing random results.
Commenting out the begin, end combination allows the code to run as
expected.
My code is below, can someone tell me if the begin, end combination
should actually make a difference, or should they be more ornamental
in function?
.
.
Well, your question suggests that your understanding of the Pascal
language (and creating algorithms in general) shall be improved. The
begin / end pair creates a block which then becomes part of the program
structure. If there is a language construct (e.g. a condition, a loop or
with) which is applied to a statement within the source following this
construct, using begin / end causes the construct to apply to the whole
block between begin / end rather than a single statement, thus it indeed
makes a big difference in many (most) cases.
Tomas
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