每日积累（20170911-day-27）(ubuntu pcl project segmentation fault)

in ubuntu 16.04 build own project using Cmake/PCL/VTK/Qt

Some project built success in Win7/10 but failed in ubunt 16.04

the project can be compiled and run, but crashed with:

segmentation faultThread 1 "pcd_viewer" received signal SIGSEGV, Segmentation fault.__mempcpy_sse2 () at ../sysdeps/x86_64/memcpy.S:201201../sysdeps/x86_64/memcpy.S: No such file or directory.

I found one bug today

char *filename;                                                   sprintf(filename, "/home/bbox_%s.txt ", filename);

it should be:

char filename[200];                                                   sprintf(filename, "/home/bbox_%s.txt ", filename);

it's work. The bug seems caused by using char* without initialization.

There are still some bugs like that, and I will find them later.