Path: utzoo!utgpu!watmath!uunet!ginosko!uakari.primate.wisc.edu!xanth!mcnc!sps
From: sps@mcnc.org (Stephen P. Schaefer)
Newsgroups: gnu.gcc.bug
Subject: typedef const char foo[]; broken
Message-ID: <SPS.89Oct7182443@magoo.mcnc.org>
Date: 7 Oct 89 22:24:43 GMT
Sender: daemon@mcnc.org
Distribution: gnu
Organization: Microelectronics Center of North Carolina
Lines: 42

GCC 1.36 on Sun OS 4.0.1, constructed from the diffs obtained from
prep.ai.mit.edu.

Please note the incorrect output generated when printing the 40
character + null string.  The problem does not occur when the strng1
declaration is replaced with ``const char strng1[]''.  The problem
does not occur at all with GCC 1.36 on a VAX running 4.3BSD.  The
message ``warning: initializer-string for array of chars is too long''
does not appear when the problem string is a 32 character + null.  If
this restriction cannot be removed, then I ask that the ``warning'' be
intensified into an error.  I'm curious about how this happens.

Thanks for a great compiler!  I can work around this.

underdog:sps:349 gcc -v toosmall.c
gcc version 1.36
 /usr/local/std/lib/gcc-cpp -v -undef -D__GNUC__ -Dsparc -Dsun -Dunix -D__sparc__ -D__sun__ -D__unix__ toosmall.c /usr/tmp/cca09127.cpp
GNU CPP version 1.36
 /usr/local/std/lib/gcc-cc1 /usr/tmp/cca09127.cpp -quiet -dumpbase toosmall.c -version -o /usr/tmp/cca09127.s
GNU C version 1.36 (sparc) compiled by GNU C version 1.36.
default target switches: -mfpu -mepilogue
toosmall.c:3: warning: initializer-string for array of chars is too long
 /usr/local/std/lib/gcc-as -o toosmall.o /usr/tmp/cca09127.s
 ld -e start -dc -dp /lib/crt0.o toosmall.o /usr/local/std/lib/gcc-gnulib -lc
underdog:sps:350 ./a.out
1234567890123456789012345678901
12345678901234567890123456789012%s

underdog:sps:351 cat toosmall.c
typedef const char foo[];
foo strng = "1234567890123456789012345678901";
foo strng1 = "1234567890123456789012345678901234567890";

main() {
   printf("%s\n", strng);
  printf("%s\n", strng1);
}
underdog:sps:352 
--
	Stephen P. Schaefer, Postmaster	MCNC
	sps@mcnc.org			P.O. Box 12889
	...!mcnc!sps			RTP, NC 27709