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* [Bug c++/13736] New: [gcc-3.4 parser regression] Some compound casts rejected @ 2004-01-19 9:11 jan at etpmod dot phys dot tue dot nl 2004-01-19 12:19 ` [Bug c++/13736] [3.4/3.5 Regression] Parser confused on compound casts giovannibajo at libero dot it ` (5 more replies) 0 siblings, 6 replies; 7+ messages in thread From: jan at etpmod dot phys dot tue dot nl @ 2004-01-19 9:11 UTC (permalink / raw) To: gcc-bugs The following snippet refuses to compile with the gcc-3.4 branch (and with the trunk, I guess). It compiles fine with previous versions. The offending line and work-arounds are indicated as comments. Is it the parser, or is it me? #include <string> int main() { using std::string; string s1(string( (string )(""))); // OK string s2(string( (const char*)(""))); // Does not compile typedef const char* charp; string s3(string( (charp)(""))); // Workaround: intermediate typedef string s4((string( (const char*)("")))); // Workaround: extra parenthesis return 0; } jan@nbjapan:~/src $ g++ t.cpp t.cpp: In function `int main()': t.cpp:8: error: expected `)' before '(' token t.cpp:8: error: expected `,' or `...' before '(' token t.cpp:8: error: expected init-declarator before ')' token t.cpp:8: error: expected `,' or `;' before ')' token jan@nbjapan:~/src $ g++ -v Reading specs from /home/jan/local/gcc-3.4/lib/gcc/i686-pc-linux-gnu/3.4.0/ specs Configured with: ../gcc-3.4/configure --prefix=/home/jan/local/gcc-3.4 --enable-languages=c,c++ --disable-checking Thread model: posix gcc version 3.4.0 20040119 (prerelease) -- Summary: [gcc-3.4 parser regression] Some compound casts rejected Product: gcc Version: 3.4.0 Status: UNCONFIRMED Severity: critical Priority: P2 Component: c++ AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: jan at etpmod dot phys dot tue dot nl CC: gcc-bugs at gcc dot gnu dot org GCC build triplet: pc-linux-gnu GCC host triplet: pc-linux-gnu GCC target triplet: pc-linux-gnu http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13736 ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug c++/13736] [3.4/3.5 Regression] Parser confused on compound casts 2004-01-19 9:11 [Bug c++/13736] New: [gcc-3.4 parser regression] Some compound casts rejected jan at etpmod dot phys dot tue dot nl @ 2004-01-19 12:19 ` giovannibajo at libero dot it 2004-01-19 12:28 ` pinskia at gcc dot gnu dot org ` (4 subsequent siblings) 5 siblings, 0 replies; 7+ messages in thread From: giovannibajo at libero dot it @ 2004-01-19 12:19 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From giovannibajo at libero dot it 2004-01-19 12:19 ------- Confirmed, a regression on 3.4/3.5 probably caused by the new parser. A self- contained testcase is obviously: ------------------------------------------------- struct string { string() {}; string(const string& ) {}; string(const char * ) {}; }; int main() { string s1(string( (string )(""))); // OK string s2(string( (const char*)(""))); // Does not compile typedef const char* charp; string s3(string( (charp)(""))); // Workaround: intermediate typedef string s4((string( (const char*)("")))); // Workaround: extra parenthesis return 0; } ------------------------------------------------- -- What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Ever Confirmed| |1 Keywords| |rejects-valid Last reconfirmed|0000-00-00 00:00:00 |2004-01-19 12:19:25 date| | Summary|[gcc-3.4 parser regression] |[3.4/3.5 Regression] Parser |Some compound casts rejected|confused on compound casts Target Milestone|--- |3.4.0 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13736 ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug c++/13736] [3.4/3.5 Regression] Parser confused on compound casts 2004-01-19 9:11 [Bug c++/13736] New: [gcc-3.4 parser regression] Some compound casts rejected jan at etpmod dot phys dot tue dot nl 2004-01-19 12:19 ` [Bug c++/13736] [3.4/3.5 Regression] Parser confused on compound casts giovannibajo at libero dot it @ 2004-01-19 12:28 ` pinskia at gcc dot gnu dot org 2004-01-25 3:27 ` pinskia at gcc dot gnu dot org ` (3 subsequent siblings) 5 siblings, 0 replies; 7+ messages in thread From: pinskia at gcc dot gnu dot org @ 2004-01-19 12:28 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From pinskia at gcc dot gnu dot org 2004-01-19 12:28 ------- >From Phil's regression hunter: Search converges between 2003-12-17-trunk (#479) and 2003-12 -18-trunk (#480). Related to another PR which I cannot find right now. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13736 ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug c++/13736] [3.4/3.5 Regression] Parser confused on compound casts 2004-01-19 9:11 [Bug c++/13736] New: [gcc-3.4 parser regression] Some compound casts rejected jan at etpmod dot phys dot tue dot nl 2004-01-19 12:19 ` [Bug c++/13736] [3.4/3.5 Regression] Parser confused on compound casts giovannibajo at libero dot it 2004-01-19 12:28 ` pinskia at gcc dot gnu dot org @ 2004-01-25 3:27 ` pinskia at gcc dot gnu dot org 2004-01-29 1:29 ` cvs-commit at gcc dot gnu dot org ` (2 subsequent siblings) 5 siblings, 0 replies; 7+ messages in thread From: pinskia at gcc dot gnu dot org @ 2004-01-25 3:27 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From pinskia at gcc dot gnu dot org 2004-01-25 03:26 ------- Mark this is caused by your patch: PR c++/10603 PR c++/12827 * parser.c (cp_parser_error): Help c_parse_error print good messages if the next token is a keyword. (cp_parser_parameter_declaration_list): When resynchronizing after a bad parameter declaration, stop if a comma is found. (cp_parser_parameter_declaration): Avoid backtracking. -- What |Removed |Added ---------------------------------------------------------------------------- AssignedTo|unassigned at gcc dot gnu |mmitchel at gcc dot gnu dot |dot org |org Status|NEW |ASSIGNED http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13736 ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug c++/13736] [3.4/3.5 Regression] Parser confused on compound casts 2004-01-19 9:11 [Bug c++/13736] New: [gcc-3.4 parser regression] Some compound casts rejected jan at etpmod dot phys dot tue dot nl ` (2 preceding siblings ...) 2004-01-25 3:27 ` pinskia at gcc dot gnu dot org @ 2004-01-29 1:29 ` cvs-commit at gcc dot gnu dot org 2004-01-29 1:34 ` cvs-commit at gcc dot gnu dot org 2004-01-29 1:35 ` mmitchel at gcc dot gnu dot org 5 siblings, 0 replies; 7+ messages in thread From: cvs-commit at gcc dot gnu dot org @ 2004-01-29 1:29 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From cvs-commit at gcc dot gnu dot org 2004-01-29 01:29 ------- Subject: Bug 13736 CVSROOT: /cvs/gcc Module name: gcc Changes by: mmitchel@gcc.gnu.org 2004-01-29 01:29:04 Modified files: gcc/cp : ChangeLog parser.c gcc/testsuite : ChangeLog Added files: gcc/testsuite/g++.dg/parse: cast2.C Log message: PR c++/13736 * parser.c (cp_parser_direct_declarator): Do not prevent backtracking inside a parenthesized declarator. (cp_parser_parameter_declaration): Fix typo in comment. PR c++/13736 * g++.dg/parse/cast2.C (main): New test. Patches: http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/ChangeLog.diff?cvsroot=gcc&r1=1.3914&r2=1.3915 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/parser.c.diff?cvsroot=gcc&r1=1.161&r2=1.162 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.3433&r2=1.3434 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/parse/cast2.C.diff?cvsroot=gcc&r1=NONE&r2=1.1 -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13736 ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug c++/13736] [3.4/3.5 Regression] Parser confused on compound casts 2004-01-19 9:11 [Bug c++/13736] New: [gcc-3.4 parser regression] Some compound casts rejected jan at etpmod dot phys dot tue dot nl ` (3 preceding siblings ...) 2004-01-29 1:29 ` cvs-commit at gcc dot gnu dot org @ 2004-01-29 1:34 ` cvs-commit at gcc dot gnu dot org 2004-01-29 1:35 ` mmitchel at gcc dot gnu dot org 5 siblings, 0 replies; 7+ messages in thread From: cvs-commit at gcc dot gnu dot org @ 2004-01-29 1:34 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From cvs-commit at gcc dot gnu dot org 2004-01-29 01:34 ------- Subject: Bug 13736 CVSROOT: /cvs/gcc Module name: gcc Branch: gcc-3_4-branch Changes by: mmitchel@gcc.gnu.org 2004-01-29 01:33:55 Modified files: gcc/testsuite : ChangeLog gcc/cp : ChangeLog parser.c Added files: gcc/testsuite/g++.dg/parse: cast2.C Log message: PR c++/13736 * parser.c (cp_parser_direct_declarator): Do not prevent backtracking inside a parenthesized declarator. (cp_parser_parameter_declaration): Fix typo in comment. 2004-01-28 Mark Mitchell <mark@codesourcery.com> PR c++/13736 * g++.dg/parse/cast2.C: New test. Patches: http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.3389.2.26&r2=1.3389.2.27 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/parse/cast2.C.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=NONE&r2=1.1.2.1 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.3892.2.18&r2=1.3892.2.19 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/parser.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.157.2.4&r2=1.157.2.5 -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13736 ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug c++/13736] [3.4/3.5 Regression] Parser confused on compound casts 2004-01-19 9:11 [Bug c++/13736] New: [gcc-3.4 parser regression] Some compound casts rejected jan at etpmod dot phys dot tue dot nl ` (4 preceding siblings ...) 2004-01-29 1:34 ` cvs-commit at gcc dot gnu dot org @ 2004-01-29 1:35 ` mmitchel at gcc dot gnu dot org 5 siblings, 0 replies; 7+ messages in thread From: mmitchel at gcc dot gnu dot org @ 2004-01-29 1:35 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From mmitchel at gcc dot gnu dot org 2004-01-29 01:35 ------- Fixed in GCC 3.4. -- What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution| |FIXED http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13736 ^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2004-01-29 1:35 UTC | newest] Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2004-01-19 9:11 [Bug c++/13736] New: [gcc-3.4 parser regression] Some compound casts rejected jan at etpmod dot phys dot tue dot nl 2004-01-19 12:19 ` [Bug c++/13736] [3.4/3.5 Regression] Parser confused on compound casts giovannibajo at libero dot it 2004-01-19 12:28 ` pinskia at gcc dot gnu dot org 2004-01-25 3:27 ` pinskia at gcc dot gnu dot org 2004-01-29 1:29 ` cvs-commit at gcc dot gnu dot org 2004-01-29 1:34 ` cvs-commit at gcc dot gnu dot org 2004-01-29 1:35 ` mmitchel at gcc dot gnu dot org
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