Re: c++/8216: Code accepted by gcc is rejected by g++

Re: c++/8216: Code accepted by gcc is rejected by g++

[bangerth]

Synopsis: Code accepted by gcc is rejected by g++

State-Changed-From-To: open->analyzed
State-Changed-By: bangerth
State-Changed-When: Tue Nov  5 12:03:37 2002
State-Changed-Why:
    I can confirm the thing, but am unsure what to say: the code
    seems illegal if you don't add the LL postfix, so what's wrong
    in rejecting it?
    
    int main()
    {
      long long l = 60000000000;
    /* long long l = 60000000000LL; */
      l++;
    }

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=8216

c++/8216: Code accepted by gcc is rejected by g++

[Peter Schmid]

>Number:         8216
>Category:       c++
>Synopsis:       Code accepted by gcc is rejected by g++
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun Oct 13 16:46:00 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator:     Peter Schmid
>Release:        3.3 20021011 (experimental)
>Organization:
TU Darmstadt
>Environment:
System: Linux kiste 2.4.18 #8 Sat Mar 9 15:33:15 CET 2002 i686 unknown
Architecture: i686
GNU ld version 2.13.90.0.4 20020814
host: i686-pc-linux-gnu
build: i686-pc-linux-gnu
target: i686-pc-linux-gnu
configured with: ../gcc/configure --enable-shared --disable-nls --enable-threads=posix --enable-languages=c,c++,f77,objc --enable-__cxa_atexit
>Description:
The following code tl.c is accepted by gcc with a warning. g++ does
reject this code with an error. Earlier g++ versions show the same
behaviour as gcc, though. Was this a deliberate change? This recent
change breaks libs/date_time/test/testtime_resolution_traits.cpp from boost.

>How-To-Repeat:
source code tll.c
int main()
{
  long long l = 60000000000;
/* long long l = 60000000000LL; */
  l++;
}

g++ -v tll.c -W -Wall
Reading specs from /usr/local/lib/gcc-lib/i686-pc-linux-gnu/3.3/specs
Configured with: ../gcc/configure --enable-shared --disable-nls --enable-threads=posix --enable-languages=c,c++,f77,objc --enable-__cxa_atexit
Thread model: posix
gcc version 3.3 20021011 (experimental)
 /usr/local/lib/gcc-lib/i686-pc-linux-gnu/3.3/cc1plus -quiet -v -D__GNUC__=3 -D__GNUC_MINOR__=3 -D__GNUC_PATCHLEVEL__=0 -D_GNU_SOURCE tll.c -D__GNUG__=3 -quiet -dumpbase tll.c -auxbase tll -W -Wall -version -o /tmp/ccvxjZvf.s
GNU C++ version 3.3 20021011 (experimental) (i686-pc-linux-gnu)
	compiled by GNU C version 3.3 20021011 (experimental).
ignoring nonexistent directory "NONE/include"
ignoring nonexistent directory "/usr/local/i686-pc-linux-gnu/include"
#include "..." search starts here:
#include <...> search starts here:
 /usr/local/include/c++/3.3
 /usr/local/include/c++/3.3/i686-pc-linux-gnu
 /usr/local/include/c++/3.3/backward
 /usr/local/include
 /usr/local/lib/gcc-lib/i686-pc-linux-gnu/3.3/include
 /usr/include
End of search list.
tll.c: In function `int main()':
tll.c:3: error: integer constant is too large for "long" type

gcc -v tll.c -W -Wall
Reading specs from /usr/local/lib/gcc-lib/i686-pc-linux-gnu/3.3/specs
Configured with: ../gcc/configure --enable-shared --disable-nls --enable-threads=posix --enable-languages=c,c++,f77,objc --enable-__cxa_atexit
Thread model: posix
gcc version 3.3 20021011 (experimental)
 /usr/local/lib/gcc-lib/i686-pc-linux-gnu/3.3/cc1 -quiet -v -D__GNUC__=3 -D__GNUC_MINOR__=3 -D__GNUC_PATCHLEVEL__=0 tll.c -quiet -dumpbase tll.c -auxbase tll -W -Wall -version -o /tmp/cclsJVab.s
GNU C version 3.3 20021011 (experimental) (i686-pc-linux-gnu)
	compiled by GNU C version 3.3 20021011 (experimental).
ignoring nonexistent directory "NONE/include"
ignoring nonexistent directory "/usr/local/i686-pc-linux-gnu/include"
#include "..." search starts here:
#include <...> search starts here:
 /usr/local/include
 /usr/local/lib/gcc-lib/i686-pc-linux-gnu/3.3/include
 /usr/include
End of search list.
tll.c: In function `main':
tll.c:3: warning: integer constant is too large for "long" type
tll.c:5: warning: control reaches end of non-void function
 /usr/local/lib/gcc-lib/i686-pc-linux-gnu/3.3/../../../../i686-pc-linux-gnu/bin/as -V -Qy -o /tmp/ccyBpvwh.o /tmp/cclsJVab.s
GNU assembler version 2.13.90.0.4 (i686-pc-linux-gnu) using BFD version 2.13.90.0.4 20020814
 /usr/local/lib/gcc-lib/i686-pc-linux-gnu/3.3/collect2 --eh-frame-hdr -m elf_i386 -dynamic-linker /lib/ld-linux.so.2 /usr/lib/crt1.o /usr/lib/crti.o /usr/local/lib/gcc-lib/i686-pc-linux-gnu/3.3/crtbegin.o -L/usr/local/lib/gcc-lib/i686-pc-linux-gnu/3.3 -L/usr/local/lib/gcc-lib/i686-pc-linux-gnu/3.3/../../../../i686-pc-linux-gnu/lib -L/usr/local/lib/gcc-lib/i686-pc-linux-gnu/3.3/../../.. /tmp/ccyBpvwh.o -lgcc -lgcc_eh -lc -lgcc -lgcc_eh /usr/local/lib/gcc-lib/i686-pc-linux-gnu/3.3/crtend.o /usr/lib/crtn.o


>Fix:
	
>Release-Note:
>Audit-Trail:
>Unformatted: