Searching on the topic of Macro expansion and gdb, I found this page: http://www.delorie.com/gnu/docs/gdb/gdb_70.html Might be of interest for you, but that doc is for gdb 7.0. Might also apply for 6.8... Regards, Ovanes On Mon, Mar 2, 2009 at 2:14 PM, Ovanes Markarian wrote:

On Mon, Mar 2, 2009 at 1:43 PM, Stephan Menzel wrote:

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Hi there,

I just noticed there seems to be no way of debugging into a BOOST_FOREACH loop... Is that true?

I use g++ 4.3 / gdb 6.8 here and neither would the debugger stop any any breakpoint inside such loops nor can I step into them from outside. Is this supposed to be like that?

puzzled...

Stephan

AFAIK BOOST_FOREACH is a macro. Therefore it is expanded by pre-processor into the real code. Can you debug into macros with g++/gdb anyway? MSVC supports that, but what about g++/gdb?

There might be some workarounds, like temorary modifying the BOOST_FOREACH code and placing a debug break compiler intrinsic call into it. I think than you might be able to stop the debugger inside, but not sure what is shown than.

Good Luck, Ovanes

Stephan Menzel wrote:

Am Montag, 2. März 2009 14:21:33 schrieb Vladimir Prus:

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For me, breakpoint inside BOOST_FOREACH works. Stepping into it also works, except that you have to pass by untold millions of axillary functions. g++ 4.2, gdb 6.8

Gees, both you and Christoph wrote that. I still can't do it. The debugger won't stop at a breakpoint inside the loop. Weird. I reckon it might be a build issue. I'll look into it. Thanks for the info that it SHOULD work.

Yes, it should work. Dumb question, but you're sure there elements in the sequence, right? -- Eric Niebler BoostPro Computing http://www.boostpro.com