getpid: simplify

Author: scivision

+stdlib/get_pid.m

@@ -2,18 +2,16 @@
 
 function pid = get_pid()
 
-try
+if ~isMATLABReleaseOlderThan('R2025a')
   pid = matlabProcessID;
-catch e
-  switch e.identifier
-    case "MATLAB:UndefinedFunction", pid = feature("getpid");
-    case "Octave:undefined-function", pid = getpid();
-    otherwise, rethrow(e)
-  end
-
-  pid = uint64(pid);
+elseif stdlib.isoctave()
+  pid = getpid();
+else
+  pid = feature("getpid");
 end
 
+pid = uint64(pid);
+
 end
 
 %!assert (get_pid() > 0, "expected positive PID")

test/TestFileImpure.m

@@ -50,6 +50,7 @@ function test_samepath_notexist(tc)
 function test_get_pid(tc)
 pid = stdlib.get_pid();
 tc.verifyGreaterThan(pid, 0)
+tc.verifyClass(pid, 'uint64')
 end