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Date: Mon, 19 Jan 2004 09:11:00 -0000
From: "jan at etpmod dot phys dot tue dot nl" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Message-ID: <20040119091055.13736.jan@etpmod.phys.tue.nl>
Reply-To: gcc-bugzilla@gcc.gnu.org
Subject: [Bug c++/13736] New: [gcc-3.4 parser regression] Some compound casts rejected
X-Bugzilla-Reason: CC
X-SW-Source: 2004-01/txt/msg02185.txt.bz2
List-Id: <gcc-bugs.sourceware.org>

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