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* [Bug c++/58707] New: [C++11] A greater-than operator in square brackets should not end a template argument list
@ 2013-10-12 21:48 tuomas.tynkkynen at iki dot fi
2013-10-15 8:52 ` [Bug c++/58707] " paolo.carlini at oracle dot com
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: tuomas.tynkkynen at iki dot fi @ 2013-10-12 21:48 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58707
Bug ID: 58707
Summary: [C++11] A greater-than operator in square brackets
should not end a template argument list
Product: gcc
Version: 4.9.0
Status: UNCONFIRMED
Severity: minor
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: tuomas.tynkkynen at iki dot fi
Created attachment 30993
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=30993&action=edit
The failing code snippet
The following code snippet does not compile on latest GCC trunk:
template<int i> class TC { };
constexpr int foo[] = { 42, };
TC<foo[0 > 1]> bar;
Actual result:
tmtynkky@e42-7:/tmp$ /dos/gcc-trunk/bin/gcc -xc++ -std=c++11 -pedantic -c -o
/dev/null bracket.cpp
bracket.cpp:3:10: error: template argument 1 is invalid
TC<foo[0 > 1]> bar;
^
bracket.cpp:3:12: error: expected unqualified-id before numeric constant
TC<foo[0 > 1]> bar;
^
The '>' seems to get parsed as the ending delimiter of the template argument
list, even though it shouldn't since it is nested inside a pair of square
brackets. Clang++ 3.3 correctly accepts this snippet.
(originally discussed on
http://forum.cppgm.org/question/2286/inside-square-brackets-terminates-a-template-argument-list/)
Version information:
gcc version 4.9.0 20131011 (experimental) [trunk revision 203401] (GCC)
Target: x86_64-unknown-linux-gnu
Configured with: ../gcc-trunk-source/gcc/configure --enable
languages=c,c++,fortran --enable-checking=release --disable-libmudflap
--disable libstdcxx-pch --enable-libgomp --enable-lto --enable-gold
--with-plugin ld=/usr/bin/gold --with-cloog-include=/usr/include-cloog
--with-cloog lib=/usr/lib64 --prefix=/usr/local/gcc-trunk
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/58707] [C++11] A greater-than operator in square brackets should not end a template argument list
2013-10-12 21:48 [Bug c++/58707] New: [C++11] A greater-than operator in square brackets should not end a template argument list tuomas.tynkkynen at iki dot fi
@ 2013-10-15 8:52 ` paolo.carlini at oracle dot com
2013-10-15 16:36 ` paolo at gcc dot gnu.org
2013-10-15 16:37 ` paolo.carlini at oracle dot com
2 siblings, 0 replies; 4+ messages in thread
From: paolo.carlini at oracle dot com @ 2013-10-15 8:52 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58707
Paolo Carlini <paolo.carlini at oracle dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2013-10-15
Assignee|unassigned at gcc dot gnu.org |paolo.carlini at oracle dot com
Target Milestone|--- |4.9.0
Ever confirmed|0 |1
--- Comment #1 from Paolo Carlini <paolo.carlini at oracle dot com> ---
Apparently just a missing parser->greater_than_is_operator_p dance
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/58707] [C++11] A greater-than operator in square brackets should not end a template argument list
2013-10-12 21:48 [Bug c++/58707] New: [C++11] A greater-than operator in square brackets should not end a template argument list tuomas.tynkkynen at iki dot fi
2013-10-15 8:52 ` [Bug c++/58707] " paolo.carlini at oracle dot com
@ 2013-10-15 16:36 ` paolo at gcc dot gnu.org
2013-10-15 16:37 ` paolo.carlini at oracle dot com
2 siblings, 0 replies; 4+ messages in thread
From: paolo at gcc dot gnu.org @ 2013-10-15 16:36 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58707
--- Comment #2 from paolo at gcc dot gnu.org <paolo at gcc dot gnu.org> ---
Author: paolo
Date: Tue Oct 15 16:36:11 2013
New Revision: 203624
URL: http://gcc.gnu.org/viewcvs?rev=203624&root=gcc&view=rev
Log:
/cp
2013-10-15 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/58707
* parser.c (cp_parser_postfix_open_square_expression): Set
parser->greater_than_is_operator_p for the argument.
/testsuite
2013-10-15 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/58707
* g++.dg/cpp0x/pr58707.C: New.
Added:
trunk/gcc/testsuite/g++.dg/cpp0x/pr58707.C
Modified:
trunk/gcc/cp/ChangeLog
trunk/gcc/cp/parser.c
trunk/gcc/testsuite/ChangeLog
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/58707] [C++11] A greater-than operator in square brackets should not end a template argument list
2013-10-12 21:48 [Bug c++/58707] New: [C++11] A greater-than operator in square brackets should not end a template argument list tuomas.tynkkynen at iki dot fi
2013-10-15 8:52 ` [Bug c++/58707] " paolo.carlini at oracle dot com
2013-10-15 16:36 ` paolo at gcc dot gnu.org
@ 2013-10-15 16:37 ` paolo.carlini at oracle dot com
2 siblings, 0 replies; 4+ messages in thread
From: paolo.carlini at oracle dot com @ 2013-10-15 16:37 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58707
Paolo Carlini <paolo.carlini at oracle dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
Assignee|paolo.carlini at oracle dot com |unassigned at gcc dot gnu.org
--- Comment #3 from Paolo Carlini <paolo.carlini at oracle dot com> ---
Fixed.
^ permalink raw reply [flat|nested] 4+ messages in thread
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2013-10-12 21:48 [Bug c++/58707] New: [C++11] A greater-than operator in square brackets should not end a template argument list tuomas.tynkkynen at iki dot fi
2013-10-15 8:52 ` [Bug c++/58707] " paolo.carlini at oracle dot com
2013-10-15 16:36 ` paolo at gcc dot gnu.org
2013-10-15 16:37 ` paolo.carlini at oracle dot com
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