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* [Bug c++/31951] New: local structure problem
@ 2007-05-16 12:55 ndbecker2 at gmail dot com
2007-05-16 22:16 ` [Bug c++/31951] " pinskia at gcc dot gnu dot org
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: ndbecker2 at gmail dot com @ 2007-05-16 12:55 UTC (permalink / raw)
To: gcc-bugs
2nd call to partial_sort gives 'no match...' error, but 1st is OK.
Doesn't seem right.
#include <algorithm>
#include <vector>
template<typename vector_t>
struct Sort_Func2 {
vector_t const& mag;
Sort_Func2 (vector_t const& _mag) : mag (_mag) {}
bool operator() (int a, int b) const { return mag [a] < mag [b]; }
};
template<typename vector_t>
void F (vector_t const& v) {
struct Sort_Func {
vector_t const& mag;
Sort_Func (vector_t const& _mag) : mag (_mag) {}
bool operator() (int a, int b) const { return mag [a] < mag [b]; }
};
std::vector<int> indexes (v.size());
std::partial_sort (indexes.begin(), indexes.begin()+2, indexes.end(),
Sort_Func2<vector_t> (v));
std::partial_sort (indexes.begin(), indexes.begin()+2, indexes.end(),
Sort_Func (v));
}
int main() {
std::vector<int> v;
F (v);
}
--
Summary: local structure problem
Product: gcc
Version: 4.1.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: ndbecker2 at gmail dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31951
^ permalink raw reply [flat|nested] 5+ messages in thread* [Bug c++/31951] local structure problem 2007-05-16 12:55 [Bug c++/31951] New: local structure problem ndbecker2 at gmail dot com @ 2007-05-16 22:16 ` pinskia at gcc dot gnu dot org 2007-05-17 14:48 ` bangerth at dealii dot org ` (2 subsequent siblings) 3 siblings, 0 replies; 5+ messages in thread From: pinskia at gcc dot gnu dot org @ 2007-05-16 22:16 UTC (permalink / raw) To: gcc-bugs ------- Comment #1 from pinskia at gcc dot gnu dot org 2007-05-16 23:16 ------- This is not a bug, local classes cannot be template arguments. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31951 ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug c++/31951] local structure problem 2007-05-16 12:55 [Bug c++/31951] New: local structure problem ndbecker2 at gmail dot com 2007-05-16 22:16 ` [Bug c++/31951] " pinskia at gcc dot gnu dot org @ 2007-05-17 14:48 ` bangerth at dealii dot org 2009-10-05 14:42 ` dmitry at lsi dot upc dot edu 2009-10-05 14:58 ` redi at gcc dot gnu dot org 3 siblings, 0 replies; 5+ messages in thread From: bangerth at dealii dot org @ 2007-05-17 14:48 UTC (permalink / raw) To: gcc-bugs ------- Comment #2 from bangerth at dealii dot org 2007-05-17 15:48 ------- Indeed, like Andrew says. -- bangerth at dealii dot org changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution| |INVALID http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31951 ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug c++/31951] local structure problem 2007-05-16 12:55 [Bug c++/31951] New: local structure problem ndbecker2 at gmail dot com 2007-05-16 22:16 ` [Bug c++/31951] " pinskia at gcc dot gnu dot org 2007-05-17 14:48 ` bangerth at dealii dot org @ 2009-10-05 14:42 ` dmitry at lsi dot upc dot edu 2009-10-05 14:58 ` redi at gcc dot gnu dot org 3 siblings, 0 replies; 5+ messages in thread From: dmitry at lsi dot upc dot edu @ 2009-10-05 14:42 UTC (permalink / raw) To: gcc-bugs ------- Comment #3 from dmitry at lsi dot upc dot edu 2009-10-05 14:42 ------- (In reply to comment #1) > This is not a bug, local classes cannot be template arguments. > What does prevent them to be? -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31951 ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug c++/31951] local structure problem 2007-05-16 12:55 [Bug c++/31951] New: local structure problem ndbecker2 at gmail dot com ` (2 preceding siblings ...) 2009-10-05 14:42 ` dmitry at lsi dot upc dot edu @ 2009-10-05 14:58 ` redi at gcc dot gnu dot org 3 siblings, 0 replies; 5+ messages in thread From: redi at gcc dot gnu dot org @ 2009-10-05 14:58 UTC (permalink / raw) To: gcc-bugs ------- Comment #4 from redi at gcc dot gnu dot org 2009-10-05 14:58 ------- 14.3.1 [temp.arg.type] paragraph 2 in the current C++ standard says: A type without linkage (3.5) shall not be used as a template argument for a template type parameter. This is changing for C++0x, based on the proposal http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31951 ^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2009-10-05 14:58 UTC | newest] Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2007-05-16 12:55 [Bug c++/31951] New: local structure problem ndbecker2 at gmail dot com 2007-05-16 22:16 ` [Bug c++/31951] " pinskia at gcc dot gnu dot org 2007-05-17 14:48 ` bangerth at dealii dot org 2009-10-05 14:42 ` dmitry at lsi dot upc dot edu 2009-10-05 14:58 ` redi at gcc dot gnu dot org
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