function to work with data

Hello guys

I need a function for delphi 5 that I can sum days, months or years. Something like dateadd of mssql.

Something like this way:

dateadd(data: tdatetime; type: string; value: integer): Tdatetime;

type = 'mm','dd','yy'

Data: is the original date
it type = 'mm' only the month will have to be add and so on
value = the value to add

this function must be work with - and +


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to add day simply add 1 to datetime
to add year IncMonth(, 12)


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hidrauAuthor Commented:
I unknew this function.

thanks very much

you're welcome:)

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