| Summary: | [3.3/3.4 regression] static_cast + explicit ctor regression | ||
|---|---|---|---|
| Product: | gcc | Reporter: | Vladimir Prus <vladimir> |
| Component: | c++ | Assignee: | Not yet assigned to anyone <unassigned> |
| Status: | RESOLVED FIXED | ||
| Severity: | critical | CC: | gcc-bugs, vladimir |
| Priority: | P2 | ||
| Version: | 3.3.2 | ||
| Target Milestone: | 3.3.2 | ||
| Host: | Target: | ||
| Build: | Known to work: | ||
| Known to fail: | Last reconfirmed: | 2003-09-04 14:19:36 | |
I don't have a recent 3.3 snapshot around, but I can confirm that it worked in 3.3.0 and a may snapshot of mainline, while it is broken with present mainline. So it's a regression in any case. W. From Phil's regression hunter: Search converges between 2003-06-25-trunk (#324) and 2003- 06-26-trunk (#325). : Search converges between 2003-06-25-3.3 (#149) and 2003-06-26-3.3 (#150). Subject: Bug 12163 CVSROOT: /cvs/gcc Module name: gcc Changes by: mmitchel@gcc.gnu.org 2003-09-05 18:04:22 Modified files: gcc/cp : ChangeLog call.c pt.c gcc/testsuite : ChangeLog Added files: gcc/testsuite/g++.dg/expr: static_cast4.C gcc/testsuite/g++.dg/template: crash9.C Log message: PR c++/12163 * call.c (perform_direct_initialization): Correct logic for direct-initialization of a class type. PR c++/12146 * pt.c (lookup_template_function): Robustify. PR c++/12163 * g++.dg/expr/static_cast4.C: New test. PR c++/12146 * g++.dg/template/crash9.C: New test. Patches: http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/ChangeLog.diff?cvsroot=gcc&r1=1.3648&r2=1.3649 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/call.c.diff?cvsroot=gcc&r1=1.430&r2=1.431 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/pt.c.diff?cvsroot=gcc&r1=1.774&r2=1.775 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.3026&r2=1.3027 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/expr/static_cast4.C.diff?cvsroot=gcc&r1=NONE&r2=1.1 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/template/crash9.C.diff?cvsroot=gcc&r1=NONE&r2=1.1 Subject: Bug 12163 CVSROOT: /cvs/gcc Module name: gcc Branch: gcc-3_3-branch Changes by: mmitchel@gcc.gnu.org 2003-09-05 18:31:19 Modified files: gcc/cp : ChangeLog call.c pt.c gcc/testsuite : ChangeLog Log message: PR c++/12163 * call.c (perform_direct_initialization): Correct logic for direct-initialization of a class type. PR c++/12146 * pt.c (lookup_template_function): Robustify. PR c++/12163 * g++.dg/expr/static_cast4.C: New test. PR c++/12146 * g++.dg/template/crash9.C: New test. Patches: http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=1.3076.2.198&r2=1.3076.2.199 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/call.c.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=1.341.2.30&r2=1.341.2.31 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/pt.c.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=1.635.2.35&r2=1.635.2.36 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=1.2261.2.266&r2=1.2261.2.267 Fixed in GCC 3.3.2, GCC 3.4. |
Using gcc version 3.3.2 20030831 (Debian prerelease) I get compile error on the following code: class C { public: explicit C(int) {} }; int main() { int i = 0; static_cast<C>(i); return 0; } The error is: bash-2.05b$ g++ ex.cpp ex.cpp: In function `int main()': ex.cpp:10: error: invalid static_cast from type `int' to type `C' It works in 3.2. It seems that 'static_cast' is rather explcit, so the ctor should be used.