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Article #1294

Unhelpful redeclaration warning in gcc 2.3.1

#1294
From: Jason Merrill
Date: Sat, 07 Nov 1992 04:01
15 lines
990 bytes
This declaration:
char *memcpy(char *s1, char *s2, int n);

produces these warnings:
memcpy.c:1: warning: conflicting types for built-in function `memcpy'
memcpy.c:1: warning: type mismatch with previous external decl
<built-in>:0: warning: previous external decl of `memcpy'

Should there be three warnings for the same error?
Also, it would be very nice if gcc told you what types it expects, so you
don't have to go hunting through the source to find out.

--
Jason Merrill
jason@jarthur.claremont.edu
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Message-ID: <1992Nov7.040119.11784@muddcs.claremont.edu>
Path: arc1-ca.pugleaf.net!sparky!uunet!zaphod.mps.ohio-state.edu!cis.ohio-state.edu!jarthur.claremont.edu!jason

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Newsgroups: gnu.gcc.bug
Path: arc1-ca.pugleaf.net!sparky!uunet!zaphod.mps.ohio-state.edu!cis.ohio-state.edu!jarthur.claremont.edu!jason
From: jason@jarthur.claremont.edu (Jason Merrill)
Subject: Unhelpful redeclaration warning in gcc 2.3.1
Message-ID: <1992Nov7.040119.11784@muddcs.claremont.edu>
Sender: gnulists@ai.mit.edu
Organization: Harvey Mudd College, Claremont, CA 91711
Distribution: gnu
Date: Sat, 7 Nov 1992 04:01:19 GMT
Approved: bug-gcc@prep.ai.mit.edu
Lines: 16