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Date:      Sat, 22 Aug 1998 19:17:35 -0700
From:      Don Lewis <Don.Lewis@tsc.tdk.com>
To:        joelh@gnu.org, Don.Lewis@tsc.tdk.com
Cc:        hackers@FreeBSD.ORG
Subject:   Re: Realloc fix for review
Message-ID:  <199808230217.TAA11783@salsa.gv.tsc.tdk.com>
In-Reply-To: Joel Ray Holveck <joelh@gnu.org> "Re: Realloc fix for review" (Aug 21,  5:58pm)

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On Aug 21,  5:58pm, Joel Ray Holveck wrote:
} Subject: Re: Realloc fix for review
} > } So rather than hack some really complicated a and na's, I write a new
} > } function, added it to libc and then modified all of src/lib to use
} > } this new function.  I called it frealloc (freeing realloc).  I added
} > } it to the man page, etc.  I know that this isn't in ANSI C nor in
} > } POSIX, but after seeing how hard it was to get people to use strncpy
} > } right, I thought it would be good to add this to libc.
} > I'd worry about causing name space pollution.  You might break someone
} > else's code who has their own function called frealloc ...
} 
} Isn't that what weak symbols in libc are for?

There's also the question of where you put the function prototype.  If
you put it in a standard header file, you'll break any third party code
that redefines this function.  Putting it in a non-standard header file
is ok, but you'll have to include this header in any code that uses this
function.  You could also put the prototype in a standard header file if
you use the proper #ifdef trickery to protect it from been seen by code
that doesn't want to see any non-ANSI/non-POSIX symbols.

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