xcode-file-redirection.md

@@ -46,7 +46,7 @@ You have seen compiler guards before in header files in the form of
 ...
 #endif
 ```
-You can read more about these [here](https://msdn.microsoft.com/en-us/library/ew2hz0yd.aspx). On Mac OS, the operating system macro is `__APPLE__`.
+You can read more about these [here](https://msdn.microsoft.com/en-us/library/ew2hz0yd.aspx). On macOS, the operating system macro is `__APPLE__`.
 
 ```
 #ifdef __APPLE__
@@ -55,7 +55,7 @@ freopen(“outputFilename.txt”, “w”, stdout);
 #endif
  ```
 
-This will compile with `freopen()` *only* when the operating system is *Mac OS*, so when your code compiles on CAEN,  those lines are ignored.
+This will compile with `freopen()` *only* when the operating system is *macOS*, so when your code compiles on CAEN,  those lines are ignored.
 
 ### Using environment variables