On Fri, 2007-04-13 at 00:02 +0300, Peter Dimov wrote:
Peter Dimov wrote:
MSVC 8 says that you're using an uninitialized 'node' variable here. Is this intended?
Not likely since this leads to a fault in property_map.hpp:351 where iter is advanced past the end of the sequence.
You might want to investigate how to activate the debug mode of your standard library implementation, if it supports one; this is invaluable in hunting down such iterator errors. Your compiler probably warned about the uninitialized variable, too; it's easy to miss an important warning if it's buried in a flood of harmless ones, but spotting the problem early because of it can be a real time saver.
I have very strict compiler flags: g++ -O0 -g3 -Wall -Werror -Wextra -ansi -pedantic -o test_dag test_dag.cpp This ran without reporting back an unitiailized variables. I use these same flags in building the main program. This way the compiler aborts when it get a warning so I have to deal with it. The gcc compiler flag for warning about uninitialized variables, -Wuninitialized, is call in the -Wall. Stephen