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* [Bug c++/23959] New: -Wswitch-default reports missing default in a template that has one @ 2005-09-19 2:34 rlibiez at arthmoor dot com 2005-09-19 2:35 ` [Bug c++/23959] " rlibiez at arthmoor dot com ` (4 more replies) 0 siblings, 5 replies; 9+ messages in thread From: rlibiez at arthmoor dot com @ 2005-09-19 2:34 UTC (permalink / raw) To: gcc-bugs -Wswitch default warning flag is producing a warning message saying that a template does not have a default case even though it does. GCC version specs: Using built-in specs. Target: i386-redhat-linux Configured with: ../configure --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --enable-shared --enable-threads=posix --enable-checking=release --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --enable-libgcj-multifile --enable-languages=c,c++,objc,java,f95,ada --enable-java-awt=gtk --with-java-home=/usr/lib/jvm/java-1.4.2-gcj-1.4.2.0/jre --host=i386-redhat-linux Thread model: posix gcc version 4.0.1 20050727 (Red Hat 4.0.1-5) Installed via RPM package from Fedora Core 4 Command line: g++ -o test test.c -Wswitch-default -Wall --pedantic Compiler output: test.c: In function 'void foo(ArrayType*)': test.c:12: warning: switch missing default case Detailed output: g++ -v -save-temps -Wswitch-default -Wall --pedantic -o test test.c Using built-in specs. Target: i386-redhat-linux Configured with: ../configure --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --enable-shared --enable-threads=posix --enable-checking=release --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --enable-libgcj-multifile --enable-languages=c,c++,objc,java,f95,ada --enable-java-awt=gtk --with-java-home=/usr/lib/jvm/java-1.4.2-gcj-1.4.2.0/jre --host=i386-redhat-linux Thread model: posix gcc version 4.0.1 20050727 (Red Hat 4.0.1-5) /usr/libexec/gcc/i386-redhat-linux/4.0.1/cc1plus -E -quiet -v -D_GNU_SOURCE test.c -Wswitch-default -Wall -pedantic -fpch-preprocess -o test.ii ignoring nonexistent directory "/usr/lib/gcc/i386-redhat-linux/4.0.1/../../../../i386-redhat-linux/include" #include "..." search starts here: #include <...> search starts here: /usr/lib/gcc/i386-redhat-linux/4.0.1/../../../../include/c++/4.0.1 /usr/lib/gcc/i386-redhat-linux/4.0.1/../../../../include/c++/4.0.1/i386-redhat-linux /usr/lib/gcc/i386-redhat-linux/4.0.1/../../../../include/c++/4.0.1/backward /usr/local/include /usr/lib/gcc/i386-redhat-linux/4.0.1/include /usr/include End of search list. /usr/libexec/gcc/i386-redhat-linux/4.0.1/cc1plus -fpreprocessed test.ii -quiet -dumpbase test.c -auxbase test -Wswitch-default -Wall -pedantic -version -o test.s GNU C++ version 4.0.1 20050727 (Red Hat 4.0.1-5) (i386-redhat-linux) compiled by GNU C version 4.0.1 20050727 (Red Hat 4.0.1-5). GGC heuristics: --param ggc-min-expand=81 --param ggc-min-heapsize=96921 test.c: In function 'void foo(ArrayType*)': test.c:12: warning: switch missing default case as -V -Qy -o test.o test.s GNU assembler version 2.15.94.0.2.2 (i386-redhat-linux) using BFD version 2.15.94.0.2.2 20041220 /usr/libexec/gcc/i386-redhat-linux/4.0.1/collect2 --eh-frame-hdr -m elf_i386 -dynamic-linker /lib/ld-linux.so.2 -o test /usr/lib/gcc/i386-redhat-linux/4.0.1/../../../crt1.o /usr/lib/gcc/i386-redhat-linux/4.0.1/../../../crti.o /usr/lib/gcc/i386-redhat-linux/4.0.1/crtbegin.o -L/usr/lib/gcc/i386-redhat-linux/4.0.1 -L/usr/lib/gcc/i386-redhat-linux/4.0.1 -L/usr/lib/gcc/i386-redhat-linux/4.0.1/../../.. test.o -lstdc++ -lm -lgcc_s -lgcc -lc -lgcc_s -lgcc /usr/lib/gcc/i386-redhat-linux/4.0.1/crtend.o /usr/lib/gcc/i386-redhat-linux/4.0.1/../../../crtn.o Testcase code: #include <iostream> using namespace std; template <typename ArrayType> void foo( ArrayType * arr ) { int i = 0; for ( ;; ) { switch ( arr[i] ) { default: cout << arr[i] << endl; break; case 1: case 2: case 3: case 4: case 5: case 6: case 7: case 8: case 9: cout << "woot" << endl; continue; } i++; } } int main() { int arr[10] = {1,2,3,4,5,6,7,8,9,10}; foo<int>(arr); return 0; } -- Summary: -Wswitch-default reports missing default in a template that has one Product: gcc Version: 4.0.1 Status: UNCONFIRMED Severity: normal Priority: P2 Component: c++ AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: rlibiez at arthmoor dot com CC: gcc-bugs at gcc dot gnu dot org GCC build triplet: Unknown GCC host triplet: Unknown GCC target triplet: Unknown http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23959 ^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug c++/23959] -Wswitch-default reports missing default in a template that has one 2005-09-19 2:34 [Bug c++/23959] New: -Wswitch-default reports missing default in a template that has one rlibiez at arthmoor dot com @ 2005-09-19 2:35 ` rlibiez at arthmoor dot com 2005-09-19 2:41 ` [Bug c++/23959] [4.0/4.1 Regression] " pinskia at gcc dot gnu dot org ` (3 subsequent siblings) 4 siblings, 0 replies; 9+ messages in thread From: rlibiez at arthmoor dot com @ 2005-09-19 2:35 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From rlibiez at arthmoor dot com 2005-09-19 02:35 ------- Created an attachment (id=9772) --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=9772&action=view) Preprocessed compiler output The preprocessed output from the -save-temps option. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23959 ^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug c++/23959] [4.0/4.1 Regression] -Wswitch-default reports missing default in a template that has one 2005-09-19 2:34 [Bug c++/23959] New: -Wswitch-default reports missing default in a template that has one rlibiez at arthmoor dot com 2005-09-19 2:35 ` [Bug c++/23959] " rlibiez at arthmoor dot com @ 2005-09-19 2:41 ` pinskia at gcc dot gnu dot org 2005-09-19 17:57 ` pinskia at gcc dot gnu dot org ` (2 subsequent siblings) 4 siblings, 0 replies; 9+ messages in thread From: pinskia at gcc dot gnu dot org @ 2005-09-19 2:41 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From pinskia at gcc dot gnu dot org 2005-09-19 02:41 ------- Confirmed, reduced testcase: template <typename ArrayType> void foo( ) { int i = 0; switch ( i ) { case 9: default: break; } } -- What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Ever Confirmed| |1 GCC build triplet|Unknown | GCC host triplet|Unknown | GCC target triplet|Unknown | Keywords| |diagnostic Known to fail| |4.0.0 4.1.0 Known to work| |3.4.0 Last reconfirmed|0000-00-00 00:00:00 |2005-09-19 02:41:50 date| | Summary|-Wswitch-default reports |[4.0/4.1 Regression] - |missing default in a |Wswitch-default reports |template that has one |missing default in a | |template that has one Target Milestone|--- |4.0.2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23959 ^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug c++/23959] [4.0/4.1 Regression] -Wswitch-default reports missing default in a template that has one 2005-09-19 2:34 [Bug c++/23959] New: -Wswitch-default reports missing default in a template that has one rlibiez at arthmoor dot com 2005-09-19 2:35 ` [Bug c++/23959] " rlibiez at arthmoor dot com 2005-09-19 2:41 ` [Bug c++/23959] [4.0/4.1 Regression] " pinskia at gcc dot gnu dot org @ 2005-09-19 17:57 ` pinskia at gcc dot gnu dot org 2005-09-19 17:59 ` pinskia at gcc dot gnu dot org 2005-09-27 16:11 ` mmitchel at gcc dot gnu dot org 4 siblings, 0 replies; 9+ messages in thread From: pinskia at gcc dot gnu dot org @ 2005-09-19 17:57 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From pinskia at gcc dot gnu dot org 2005-09-19 17:57 ------- : Search converges between 2004-05-11-trunk (#454) and 2004-05-14-trunk (#455). : Search converges between 2003-10-30-ssa (#120) and 2003-10-31-ssa (#121). -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23959 ^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug c++/23959] [4.0/4.1 Regression] -Wswitch-default reports missing default in a template that has one 2005-09-19 2:34 [Bug c++/23959] New: -Wswitch-default reports missing default in a template that has one rlibiez at arthmoor dot com ` (2 preceding siblings ...) 2005-09-19 17:57 ` pinskia at gcc dot gnu dot org @ 2005-09-19 17:59 ` pinskia at gcc dot gnu dot org 2005-09-27 16:11 ` mmitchel at gcc dot gnu dot org 4 siblings, 0 replies; 9+ messages in thread From: pinskia at gcc dot gnu dot org @ 2005-09-19 17:59 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From pinskia at gcc dot gnu dot org 2005-09-19 17:58 ------- Obviously caused by: 2003-10-30 Richard Henderson <rth@redhat.com> * decl.c (pop_switch): Call c_do_switch_warnings. -- What |Removed |Added ---------------------------------------------------------------------------- CC| |rth at gcc dot gnu dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23959 ^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug c++/23959] [4.0/4.1 Regression] -Wswitch-default reports missing default in a template that has one 2005-09-19 2:34 [Bug c++/23959] New: -Wswitch-default reports missing default in a template that has one rlibiez at arthmoor dot com ` (3 preceding siblings ...) 2005-09-19 17:59 ` pinskia at gcc dot gnu dot org @ 2005-09-27 16:11 ` mmitchel at gcc dot gnu dot org 4 siblings, 0 replies; 9+ messages in thread From: mmitchel at gcc dot gnu dot org @ 2005-09-27 16:11 UTC (permalink / raw) To: gcc-bugs -- What |Removed |Added ---------------------------------------------------------------------------- Target Milestone|4.0.2 |4.0.3 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23959 ^ permalink raw reply [flat|nested] 9+ messages in thread
[parent not found: <bug-23959-11376@http.gcc.gnu.org/bugzilla/>]
* [Bug c++/23959] [4.0/4.1 Regression] -Wswitch-default reports missing default in a template that has one [not found] <bug-23959-11376@http.gcc.gnu.org/bugzilla/> @ 2005-10-15 19:12 ` pinskia at gcc dot gnu dot org 2005-10-15 19:35 ` pinskia at gcc dot gnu dot org 2005-10-16 14:43 ` pinskia at gcc dot gnu dot org 2 siblings, 0 replies; 9+ messages in thread From: pinskia at gcc dot gnu dot org @ 2005-10-15 19:12 UTC (permalink / raw) To: gcc-bugs ------- Comment #5 from pinskia at gcc dot gnu dot org 2005-10-15 19:12 ------- I wonder if we could get away with only calling c_do_switch_warnings when not processing template. I will look into that. -- pinskia at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |pinskia at gcc dot gnu dot | |org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23959 ^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug c++/23959] [4.0/4.1 Regression] -Wswitch-default reports missing default in a template that has one [not found] <bug-23959-11376@http.gcc.gnu.org/bugzilla/> 2005-10-15 19:12 ` pinskia at gcc dot gnu dot org @ 2005-10-15 19:35 ` pinskia at gcc dot gnu dot org 2005-10-16 14:43 ` pinskia at gcc dot gnu dot org 2 siblings, 0 replies; 9+ messages in thread From: pinskia at gcc dot gnu dot org @ 2005-10-15 19:35 UTC (permalink / raw) To: gcc-bugs ------- Comment #6 from pinskia at gcc dot gnu dot org 2005-10-15 19:35 ------- Created an attachment (id=9989) --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=9989&action=view) patch which needs testing -- pinskia at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- AssignedTo|unassigned at gcc dot gnu |pinskia at gcc dot gnu dot |dot org |org Status|NEW |ASSIGNED http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23959 ^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug c++/23959] [4.0/4.1 Regression] -Wswitch-default reports missing default in a template that has one [not found] <bug-23959-11376@http.gcc.gnu.org/bugzilla/> 2005-10-15 19:12 ` pinskia at gcc dot gnu dot org 2005-10-15 19:35 ` pinskia at gcc dot gnu dot org @ 2005-10-16 14:43 ` pinskia at gcc dot gnu dot org 2 siblings, 0 replies; 9+ messages in thread From: pinskia at gcc dot gnu dot org @ 2005-10-16 14:43 UTC (permalink / raw) To: gcc-bugs ------- Comment #7 from pinskia at gcc dot gnu dot org 2005-10-16 14:43 ------- Patch posted: http://gcc.gnu.org/ml/gcc-patches/2005-10/msg00922.html -- pinskia at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- URL| |http://gcc.gnu.org/ml/gcc- | |patches/2005- | |10/msg00922.html Keywords| |patch http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23959 ^ permalink raw reply [flat|nested] 9+ messages in thread
end of thread, other threads:[~2005-10-16 14:43 UTC | newest] Thread overview: 9+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2005-09-19 2:34 [Bug c++/23959] New: -Wswitch-default reports missing default in a template that has one rlibiez at arthmoor dot com 2005-09-19 2:35 ` [Bug c++/23959] " rlibiez at arthmoor dot com 2005-09-19 2:41 ` [Bug c++/23959] [4.0/4.1 Regression] " pinskia at gcc dot gnu dot org 2005-09-19 17:57 ` pinskia at gcc dot gnu dot org 2005-09-19 17:59 ` pinskia at gcc dot gnu dot org 2005-09-27 16:11 ` mmitchel at gcc dot gnu dot org [not found] <bug-23959-11376@http.gcc.gnu.org/bugzilla/> 2005-10-15 19:12 ` pinskia at gcc dot gnu dot org 2005-10-15 19:35 ` pinskia at gcc dot gnu dot org 2005-10-16 14:43 ` pinskia at gcc dot gnu dot org
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