I freely admit my Pascal knowledge is long forgotten, but in my defense, I offer this quote from Brian Kernighan's Why Pascal is Not My Favorite Language: "Since the original Pascal was implemented with a one-pass compiler, the language believes strongly in declaration before use. In particular, procedures and functions must be declared (body and all) before they are used." I should have remembered also his note that there was a "forward" declaration, with some restrictions.
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