如果您已经在使用 stat(2)，那么您可以轻松使用 pathconf(2) 带有 _PC_CASE_SENSITIVE 选择器(结果 0 = 不区分大小写，1 = 区分大小写.请注意，手册页已过期，但 >_PC_CASE_SENSITIVE 和 _PC_CASE_PRESERVING 被支持.按照惯例，如果文件系统不支持 _PC_CASE_SENSITIVE 选择器，那么它是区分大小写的.

If you're already using stat(2), then you can easily use pathconf(2) with the _PC_CASE_SENSITIVE selector (result 0 = case-insensitve, 1 = case-sensitive. Note that the man page is out of date, but the _PC_CASE_SENSITIVE and _PC_CASE_PRESERVING are supported. By convention, if a file system doesn't support _PC_CASE_SENSITIVE selector then it is case-sensitive.