ulrich eckhardt

ostream_iterator<type>(cout, " "));

Wrapped in a small makro/template this is not tedious at all.

Another note: in case you want to use the STLport implementation of the
stdlib, it has a so-called debug-mode that checks for e.g. invalid
iterator dereferenciations.

hth

Uli

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ron natalie

If you mean in the debugger, then you'll have to inquire on the system you
are working with. If you mean from within the program...try copy and a stream iterator:
list<int> x;
// put some stuff in x.
copy(x.begin(), x.end(), ostream_iterator<int>(cout, " "));

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yupeng_

What I mean is that how to see the data inside a STL object, such as a
set, from a graphics debugger(eg. xxgdb, ddd). I'm working on a UNIX
machine. I heard from somebody that a "hook" file is useful for
debugger to display the content of the STL objects. But I searched the
WEB, I found nothing about that. Do you have any idea? Thanks!
BTW, my STL is SGI inplementation.


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This will give you an extra separator at the end.

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siemel naran

I guess you have to put the print statements in your code. You can say

#ifndef NDEBUG
container.print();
#endif

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andy sawyer

In article <d6652001.0307180209.2d56a946@posting.google.com>,
on 18 Jul 2003 21:07:05 -0400,

Which is why some of us use for_each and a "smart¹" functor to do this
kind of thing:

struct print_it
{
******** print_it( std:stream& out, const char *sep = "" )
: out_( out ), subsequent_( false ), sep_( sep ) {}
template<typename T>
void operator()( const T& output ) const
{
if( subsequent_ )
{
if( sep_ )
out_ << sep_;
}
else
{
subsequent_ = true;
}
out_ << output;
}
private:
mutable bool subsequent_; // Yes, it's a poor name...
std:stream& out_;
const char * const sep_;
}; void fubar() {
std::list<int> x;
// do stuff
std::for_each( x.begin(), x.end(), print_it( std::cout, "," ) );
}

It's kind of ugly that print_it has mutable² state, but them's the
breaks. I'd be interested in hearing of any real-world implementations
of for_each that cause this to break. (I can imagine one, but it's a bit
pathological..)

Regards,
Andy S.
¹ For some value of smart...
² Mutable in both in the English language _and_ the C++ language senses

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how fast light travels it finds the darkness has always got there first,
and is waiting for it." -- Terry Pratchett, Reaper Man

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