valgrind 调试出现如题所示的错误，原因是存取文件名的空间被释放了
源代码：
cfg->snteam_cfg->snt.score.nd.wrd_dict_db_fn=cfg->wrd_dict_db_fn；
修改之后：
cfg->snteam_cfg->snt.heap = wtk_heap_new(1024); cfg->snteam_cfg->snt.score.nd.wrd_dict_db_fn= wtk_heap_dup_str(cfg->snteam_cfg->snt.heap, cfg->wrd_dict_db_fn);
Syscall param open(filename) points to unaddressable byte(s)
原文：http://www.cnblogs.com/tibetanmastiff/p/4685476.html