[LLVMbugs] [Bug 8187] New: PCH with C++ headers stop compilation

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=8187

           Summary: PCH with C++ headers stop compilation
           Product: clang
           Version: 2.8
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: -New Bugs
        AssignedTo: unassignedclangbugs at nondot.org
        ReportedBy: muravev at yandex.ru
                CC: llvmbugs at cs.uiuc.edu, muravev at yandex.ru


Created an attachment (id=5508)
 --> (http://llvm.org/bugs/attachment.cgi?id=5508)
Preprocessed test.cpp

How to reproduce:

$ cat src/test.h
#include <sstream>
$ cat src/test.cpp
#include <test.h>

int main()
{
    std::stringstream strm;
    return 0;
}

$ clang++ -x c++-header -Isrc -o build/test.h.pch src/test.h
$ clang++ -c -Isrc -o build/test.o src/test.cpp        <---- no errors
$ clang++ -c -Isrc -include build/test.h -o build/test.o src/test.cpp
In file included from
/home/ilya/opt/programming/atom-project/Temp/pch/src/test.h:1:

In file included from /usr/include/c++/4.4/sstream:38:

In file included from /usr/include/c++/4.4/istream:39:

In file included from /usr/include/c++/4.4/ios:42:

In file included from /usr/include/c++/4.4/bits/ios_base.h:42:

In file included from /usr/include/c++/4.4/bits/locale_classes.h:41:
In file included from /usr/include/c++/4.4/string:52:
/usr/include/c++/4.4/bits/basic_string.h:417:7: error: constructor for
'std::basic_string<char>' must explicitly initialize the member
'_M_dataplus' which does not
      have a default constructor
      basic_string();
      ^
In file included from
/home/ilya/opt/programming/atom-project/Temp/pch/src/test.h:1:
/usr/include/c++/4.4/sstream:91:7: note: in instantiation of member
function 'std::basic_string<char, std::char_traits<char>,
std::allocator<char> >::basic_string'
      requested here
      basic_stringbuf(ios_base::openmode __mode = ios_base::in |
ios_base::out)
      ^
/usr/include/c++/4.4/sstream:509:7: note: in instantiation of member
function 'std::basic_stringbuf<char, std::char_traits<char>,
std::allocator<char>
      >::basic_stringbuf' requested here
      basic_stringstream(ios_base::openmode __m = ios_base::out |
ios_base::in)
      ^
src/test.cpp:5:23: note: in instantiation of member function
'std::basic_stringstream<char, std::char_traits<char>,
std::allocator<char> >::basic_stringstream'
      requested here
    std::stringstream strm;
                      ^
In file included from
/home/ilya/opt/programming/atom-project/Temp/pch/src/test.h:1:
In file included from /usr/include/c++/4.4/sstream:38:
In file included from /usr/include/c++/4.4/istream:39:
In file included from /usr/include/c++/4.4/ios:42:
In file included from /usr/include/c++/4.4/bits/ios_base.h:42:
In file included from /usr/include/c++/4.4/bits/locale_classes.h:41:
In file included from /usr/include/c++/4.4/string:52:
/usr/include/c++/4.4/bits/basic_string.h:268:28: note: member is
declared here
      mutable _Alloc_hider      _M_dataplus;
                                ^
/usr/include/c++/4.4/bits/basic_string.h:251:14: note:
'std::basic_string<char, std::char_traits<char>, std::allocator<char>
> >::_Alloc_hider' declared here
      struct _Alloc_hider : _Alloc
             ^
1 error generated.

############### end of console output

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