我正在尝试在 C++ 中使用 SCHED_DEADLINE，我需要发送struct sched_attr到，ioctl所以我包含了<linux/sched/types.h>，该标头也恰好包含了strut sched_param。我还包括了<string>其中包括 c++ 的标准头文件，其中最终包括了include\\bits\\sched.h也定义了struct sched_param. 编译器（显然）并不特别喜欢这样。我在代码中使用了头保护（_BITS_TYPES_STRUCT_SCHED_PARAM）来让编译器不包含include\\bits\\sched.h，但感觉应该有一个“更好”的方法。
> Executing task in folder sched_deadline_testing: arm-linux-gnueabihf-g++ -o LSM9DS0 src/LSM9DS0.cpp -Wall --pedantic <\n\nIn file included from src/LSM9DS0.cpp:36:\n/usr/arm-linux-gnueabihf/include/linux/sched/types.h:7:8: error: redefinition of \xe2\x80\x98struct sched_param\xe2\x80\x99\n struct sched_param {\n ^~~~~~~~~~~\nIn file included from /usr/arm-linux-gnueabihf/include/bits/sched.h:74,\n from /usr/arm-linux-gnueabihf/include/sched.h:43,\n from /usr/arm-linux-gnueabihf/include/pthread.h:23,\n from /usr/arm-linux-gnueabihf/include/c++/8/arm-linux-gnueabihf/bits/gthr-default.h:35,\n from /usr/arm-linux-gnueabihf/include/c++/8/arm-linux-gnueabihf/bits/gthr.h:148,\n from /usr/arm-linux-gnueabihf/include/c++/8/ext/atomicity.h:35,\n from /usr/arm-linux-gnueabihf/include/c++/8/bits/basic_string.h:39,\n from /usr/arm-linux-gnueabihf/include/c++/8/string:52,\n from src/LSM9DS0.cpp:20:\n/usr/arm-linux-gnueabihf/include/bits/types/struct_sched_param.h:23:8: note: previous definition of \xe2\x80\x98struct …