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c++/2196: Template specialization and LONG_LONG_MAX -> sorry
- To: gcc-gnats at gcc dot gnu dot org
- Subject: c++/2196: Template specialization and LONG_LONG_MAX -> sorry
- From: schmid at snake dot iap dot physik dot tu-darmstadt dot de
- Date: Tue, 6 Mar 2001 20:35:07 +0100
>Number: 2196
>Category: c++
>Synopsis: Template specialization and LONG_LONG_MAX -> sorry
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: unassigned
>State: open
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Tue Mar 06 10:36:01 PST 2001
>Closed-Date:
>Last-Modified:
>Originator: Peter Schmid
>Release: 3.1 20010304 (experimental)
>Organization:
TU Darmstadt
>Environment:
System: Linux kiste 2.4.2 #34 Sun Feb 25 20:03:34 CET 2001 i686 unknown
Architecture: i686
SuSE 7.1
GLIBC 2.2
GNU ld version 2.10.91 (with BFD 2.10.1.0.4)
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-long-long
>Description:
The following legal code generates a "sorry, not implemented: mangling
very large integers" message. Template specializations cause this
message for the long long type if the constant LONG_LONG_MAX from the file
gcc-lib/i686-pc-linux-gnu/3.1/include/limit.h is used as a template parameter.
gcc-3.0 shows the same problem.
>How-To-Repeat:
source code it3.C
#define LONG_LONG_MAX 9223372036854775807LL
#define LONG_LONG_MIN (-LONG_LONG_MAX-1)
template<class T, T max_val>
class C {};
template<> C<long long, LONG_LONG_MAX>
{ };
int main()
{
}
Compiling the program it3.C
g++ -v -o it3 it3.C -W -Wall -save-temps
Reading specs from /usr/local/lib/gcc-lib/i686-pc-linux-gnu/3.1/specs
Configured with: ../gcc/configure --enable-shared --disable-nls --enable-threads=posix --enable-long-long
gcc version 3.1 20010304 (experimental)
/usr/local/lib/gcc-lib/i686-pc-linux-gnu/3.1/cpp0 -lang-c++ -D_GNU_SOURCE -D__GNUG__=3 -D__EXCEPTIONS -D__GXX_ABI_VERSION=100 -v -D__GNUC__=3 -D__GNUC_MINOR__=1 -D__GNUC_PATCHLEVEL__=0 -D__ELF__ -Dunix -Dlinux -D__ELF__ -D__unix__ -D__linux__ -D__unix -D__linux -Asystem=posix -D__STDC_HOSTED__=1 -W -Wall -Acpu=i386 -Amachine=i386 -Di386 -D__i386 -D__i386__ -D__tune_i686__ -D__tune_pentiumpro__ it3.C it3.ii
GNU CPP version 3.1 20010304 (experimental) (cpplib) (i386 Linux/ELF)
#include "..." search starts here:
#include <...> search starts here:
/usr/local/include/g++-v3
/usr/local/include/g++-v3/i686-pc-linux-gnu
/usr/local/include
/usr/local/lib/gcc-lib/i686-pc-linux-gnu/3.1/include
/usr/local/i686-pc-linux-gnu/include
/usr/include
End of search list.
/usr/local/lib/gcc-lib/i686-pc-linux-gnu/3.1/cc1plus -fpreprocessed it3.ii -quiet -dumpbase it3.C -W -Wall -version -o it3.s
GNU CPP version 3.1 20010304 (experimental) (cpplib) (i386 Linux/ELF)
GNU C++ version 3.1 20010304 (experimental) (i686-pc-linux-gnu)
compiled by GNU C version 3.1 20010304 (experimental).
it3.C:8: sorry, not implemented: mangling very large integers
it3.C:8: parse error before `{' token
Preprocessed source code it3.ii
# 4 "it3.C"
template<class T, T max_val>
class C {};
template<> C<long long, 9223372036854775807LL>
{ };
int main()
{
}
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
>mangling not implemented.