Jan Engelhardt wrote: > On Monday 2008-12-29 03:03, Eric Liang wrote: > >>> >>> >>>> It looks like that the file<memory> includes the >>>> file<c++/4.3/backward/auto_ptr.h>.But when I open the file<features.h> >>>> which is included in file<memory>,there is a mass of macros and files in >>>> it.It's too difficult for me to continue the search... >>>> >>>> So here is the question:what the path is from memory.h to >>>> auto_ptr.h? or what can I do to find it? >>>> >>> echo '#include <memory>' | g++ -E - >>> >>> and watch the #line lines as they essentially form a tree. >>> >> Thanks Jan, but after running the command, I've got these as follows: >> >> # 1 "<stdin>" >> # 1 "<built-in>" >> # 1 "<command-line>" >> # 1 "<stdin>" >> <stdin>:1:18: error: memory: No such file or directory >> >> So, what can I do next? >> > > Ah whoops, seems like you need to explicitly specify C++ mode with -E: > > echo ... | g++ -x c++ -E - > It works. Thanks again. Is there any docs about the output? It looks like a tree, but is hard to organize.
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