Running on a SuSe 9.1 pro x86_64 machine.
Reading specs from /usr/lib64/gcc/x86_64-suse-linux/3.4.3/specs
Configured with: ./configure --enable-threads=posix --prefix=/usr
--with-local-prefix=/usr/local --infodir=/usr/share/info --mandir=/usr/share/man
--enable-languages=c,c++,--disable-checking --libdir=/usr/lib64 --enable-libgcj
--with-gxx-include-dir=/usr/include/g++ --with-slibdir=/lib64 --with-system-zlib
--enable-shared --enable-__cxa_atexit x86_64-suse-linux : (reconfigured)
./configure --enable-threads=posix --prefix=/usr --with-local-prefix=/usr/local
--infodir=/usr/share/info --mandir=/usr/share/man --enable-languages=c,c++
--disable-checking --libdir=/usr/lib64 --with-gxx-include-dir=/usr/include/g++
--with-slibdir=/lib64 --with-system-zlib --enable-shared --enable-__cxa_atexit
x86_64-suse-linux
Thread model: posix
gcc version 3.4.3
I dont know if this really is a bug, but i thought you might want to know
I made a class that acts like a buffer, or actually is one. It has a get()
function that increments a pointer to the current item, making it point to the
next item in the buffer. When i do "cout << bufferclass.get() <<
bufferclass.get() << endl", it wont print it in the right order! (from left to
right).
For instance, i put 2 char's in it ('a', 'b'). Next i do the cout <<
bufferclass.get() << bufferclass.get() << endl", and it will print "ba".
When i do it in 2 steps, it will print it correct, so its not that my buffer is
screwed. Here is the code for the main:
int main()
{
Chunk<char> bla(128);
bla.add('a');
bla.add('b');
cout << bla.get() << bla.get() << endl; // Here is the error
return 0;
}
The output:
[EMAIL PROTECTED]:~/Documents> ./bla
ba
Here is the Chunk class. As you can see i also put in a operator[], and it does
work. So bla[0] will return 'a' and bla[1] will return 'b'.
#include <cstdlib>
#include <memory>
template<class T>
class Chunk
{
public:
Chunk() { data = current = avail = limit = 0; }
~Chunk();
explicit Chunk(const std::size_t&);
bool add(const T&);
T get();
T& operator[](const std::size_t& i) { return data[i]; }
private:
void alloc(const std::size_t&);
void dealloc();
std::allocator<T> mem;
T* data;
T* current;
T* avail;
T* limit;
};
template<class T>
Chunk<T>::~Chunk()
{
dealloc();
}
template<class T>
Chunk<T>::Chunk(const std::size_t& s)
{
alloc(s);
}
template<class T>
void Chunk<T>::alloc(const std::size_t& s)
{
data = mem.allocate(s);
current = avail = data;
limit = data + s;
};
template<class T>
void Chunk<T>::dealloc()
{
if (data)
{
T* iter = avail;
while (iter != avail)
{
mem.destroy(--iter);
}
mem.deallocate(data, limit - data);
}
data = current = avail = limit = 0;
}
template<class T>
bool Chunk<T>::add(const T& t)
{
if (avail == limit)
return false;
mem.construct(avail++, t);
return true;
}
template<class T>
T Chunk<T>::get()
{
T ret = *current;
current++;
return ret;
}
--
Summary: cout operator<< not in right order
Product: gcc
Version: 3.4.3
Status: UNCONFIRMED
Severity: minor
Priority: P2
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: truegrit at gmail dot com
CC: gcc-bugs at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18534
