| Summary: | [4.6/4.7 regression][C++0x] unused parameter warning on lambda in function template | ||
|---|---|---|---|
| Product: | gcc | Reporter: | Takaya Saito <gintensubaru> |
| Component: | c++ | Assignee: | Jason Merrill <jason> |
| Status: | RESOLVED FIXED | ||
| Severity: | minor | CC: | jakub, jason |
| Priority: | P3 | Keywords: | diagnostic |
| Version: | 4.6.1 | ||
| Target Milestone: | 4.6.1 | ||
| Host: | Target: | ||
| Build: | Known to work: | ||
| Known to fail: | Last reconfirmed: | 2011-06-21 19:59:12 | |
This is a minor regression relative to 4.6.0 with a trivial fix I'm testing now. Author: jason Date: Tue Jun 21 20:07:45 2011 New Revision: 175273 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=175273 Log: PR c++/49482 * semantics.c (maybe_add_lambda_conv_op): Call mark_exp_read for static fn parameters. Added: trunk/gcc/testsuite/g++.dg/cpp0x/lambda/lambda-warn3.C Modified: trunk/gcc/cp/ChangeLog trunk/gcc/cp/semantics.c trunk/gcc/testsuite/ChangeLog Author: jason Date: Tue Jun 21 20:08:01 2011 New Revision: 175274 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=175274 Log: PR c++/49482 * semantics.c (maybe_add_lambda_conv_op): Call mark_exp_read for static fn parameters. Added: branches/gcc-4_6-branch/gcc/testsuite/g++.dg/cpp0x/lambda/lambda-warn3.C Modified: branches/gcc-4_6-branch/gcc/cp/ChangeLog branches/gcc-4_6-branch/gcc/cp/semantics.c branches/gcc-4_6-branch/gcc/testsuite/ChangeLog Fixed for 4.6.1. |
testsuite (bug.cc): template<class T> void f() { []( bool b ){ return b; }; } int main() { f<int>(); } message: bug.cc: In static member function 'static bool f() [with T = int]::<lambda(bool) >::_FUN(bool)': bug.cc:3:4: instantiated from 'f() [with T = int]::<lambda(bool)>' bug.cc:3:3: instantiated from 'void f() [with T = int]' bug.cc:8:10: instantiated from here bug.cc:3:14: warning: parameter 'b' set but not used [-Wunused-but-set-parameter ] version: gcc-4.6.1-RC-20110620 note: gcc-4.6-20110527 doesn't raise such a warning.