[pgrouting-users] Server Crash in debug code in BiDirAStar.cpp in dev branch

[Dave Potts]

If you compile the BiDirAStar with the DEBUG enabled

The following block of code is switched in (lines 33-39)
#define DBG(format, arg...) \
     dbg = fopen("/tmp/sew-debug", "a"); \
     fprintf(dbg, format,  ## arg); \
     fclose(dbg);
#else

If the file /tmp/sew-debug can not be written to, the open will fail, 
the fprintf on the following line will then be invoked on a null 
pointer, with the result that program will crash, you need to say 
something like




#define DBG(format, arg...) \
     dbg = fopen("/tmp/sew-debug", "a"); \
     if(dbg != NULL ){\
         fprintf(dbg, format,  ## arg); \
         fclose(dbg);\
     }
#else