http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53525
--- Comment #12 from jimis <jimis at gmx dot net> 2012-05-30 15:55:19 UTC --- I should probably explain where the problem is and why I've left a memory leak. In tokens_buff_new() I can't use XOBNEWVEC() instead of XNEWVEC() because it is not guarded from the obstack_mark/release() calls in enter_macro_context() and it messes up previously allocated objects when going back in the recursion. The thing I don't get and so I can't figure out a solution, is where the virt_locs vector allocated inside tokens_buff_new() is freed. For example when it is called from the path cpp_get_token_1->paste_all_tokens->tokens_buff_new(), then when is the virt locs vector actually freed?
