C++使用hash_map时警告

windows 与 linux 的头文件区别:

#if defined(WIN32) || defined(WIN64)
#include
using namespace stdext;
#else
#include
using namespace __gnu_cxx;
#endif

 

编译出现警告如下：

/usr/lib/gcc/x86_64-redhat-linux/4.4.7/../../../../include/c++/4.4.7/backward/backward_warning.h:28:2: 警告：#warning This file includes at least one deprecated or antiquated header which may be removed without further notice at a future date. Please use a non-deprecated interface with equivalent functionality instead. For a listing of replacement headers and interfaces, consult the file backward_warning.h. To disable this warning use -Wno-deprecated. 

解决:

在CXX_FLAGS 中添加 -std=c++0x 以及 -Wno-deprecated 这两个选项

 

转载于:https://www.cnblogs.com/sylar-liang/p/4353485.html