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From: mike@odgate.odesta.com (Mike J. Kelly)
Newsgroups: comp.sys.mac.programmer
Subject: Re: Using prototypes
Message-ID: <1991Apr18.202045.4570@odgate.odesta.com>
Date: 18 Apr 91 20:20:45 GMT
References: <1991Apr14.021934.8840@watdragon.waterloo.edu> <1991Apr14.104649.20585@ida.liu.se>
Organization: Odesta Corporation, Northbrook IL.
Lines: 10

David Byers writes:
>C compilers (mercifully) does not complain if a function called is not
>declared, but the compiler willl make certain assumptions, leaving it
>to the linker to find the function.
>

Not so mercifully, as the example you responded to illustrates (function
returning long implicitly declared as returning an int).  That's one
reason that we ALWAYS run Think C with the "Require Prototypes" preference
turned on.