When you are asked in a question to specify a precondition as a valid boolean expression for a certain procedure. Is this just a comment within the procedure or do you have to write an if statement where the outcome is true? This is on a PDL question.
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A pre-condition occurs before the procedure.
A post-condition occurs after the procedure.
[code=c]
PreCondition();
// the procedure
PostCondition() ;
[/code]
All the boolean would mean is if the procondition were true then execute the procedure:
[code=c]
if (PreCondition() )
{
// the procedure
}
PostCondition() ;
[/code] -
Also note that if the precondition fails, it's the caller's fault. If the postcondition
fails it's the callee's fault.
kind regards,
JosComment
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thank you very much for that help. Thats put it clear for me now :PComment
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