`#include ` with `-std=c++0x` is broken

Question

If I specify -std=c++0x to g++, then I can't #include <iostream>. I get the following error messages (g++ 4.4.0 under mingw):

In file included from c:\qt\2010.05\mingw\bin\../lib/gcc/mingw32/4.4.0/include/c++/bits/postypes.h:42,
                 from c:\qt\2010.05\mingw\bin\../lib/gcc/mingw32/4.4.0/include/c++/iosfwd:42,
                 from c:\qt\2010.05\mingw\bin\../lib/gcc/mingw32/4.4.0/include/c++/ios:39,
                 from c:\qt\2010.05\mingw\bin\../lib/gcc/mingw32/4.4.0/include/c++/ostream:40,
                 from c:\qt\2010.05\mingw\bin\../lib/gcc/mingw32/4.4.0/include/c++/iostream:40,
                 from f.cpp:1:
c:\qt\2010.05\mingw\bin\../lib/gcc/mingw32/4.4.0/include/c++/cwchar:159: error: '::swprintf' has not been declared
c:\qt\2010.05\mingw\bin\../lib/gcc/mingw32/4.4.0/include/c++/cwchar:166: error: '::vswprintf' has not been declared

Any ideas why? Has this been fixed in the latest g++? (And if so, does anybody know how to incorporate the latest g++ into Qt?)

This looks like a bug in MinGW's C++ library/headers, not in G++. — Fred Foo, Jan 17 '11 at 13:36
See if it applies: http://stackoverflow.com/questions/3445312/swprintf-and-vswprintf-not-declared — Simone, Jan 17 '11 at 13:46

ssmir · Accepted Answer · 2011-01-17T13:58:37.697

7

It seems to be a bug. There is a thread with a simple patch (in the very end).

edited Jan 17 '11 at 13:58

answered Jan 17 '11 at 13:46

ssmir

1,522
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10

Thank you! That worked. (You might want to edit 'path' to 'patch' in your Answer.) – TonyK Jan 17 '11 at 13:54

score 3 · Answer 2 · edited May 12 '11 at 14:25

3

if win32{
    QMAKE_CXXFLAGS += -std=gnu++0x
}
else {
    QMAKE_CXXFLAGS += -std=c++0x
}

edited May 12 '11 at 14:25

ceving

21,900
13
104
178

answered May 12 '11 at 13:26

dbfbf

31
1

`#include ` with `-std=c++0x` is broken

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