is_dev_drive: use missing

is_removable: use missing

samepath: use missing

device: use missing

disk_capacity use missing

ram_* using missing

Author: scivision

+stdlib/+dotnet/disk_available.m

@@ -2,7 +2,7 @@
 
 function i = disk_available(file)
 
-i = uint64([]);
+i = missing;
 % Windows needs exists() not just strempty()
 if ~stdlib.exists(file)
   return
@@ -12,10 +12,9 @@
 % absolutizing is necessary for Windows especially
   i = System.IO.DriveInfo(System.IO.Path.GetFullPath(file)).AvailableFreeSpace();
 % https://learn.microsoft.com/en-us/dotnet/api/system.io.driveinfo.availablefreespace
+  i = uint64(i);
 catch e
   dotnetException(e)
 end
 
-i = uint64(i);
-
 end

+stdlib/+dotnet/disk_capacity.m

@@ -2,7 +2,7 @@
 
 function i = disk_capacity(file)
 
-i = uint64([]);
+i = missing;
 % Windows needs exists() not just strempty()
 if ~stdlib.exists(file)
   return
@@ -12,10 +12,10 @@
 % absolutizing is necessary for Windows especially
   i = System.IO.DriveInfo(System.IO.Path.GetFullPath(file)).TotalSize();
 % https://learn.microsoft.com/en-us/dotnet/api/system.io.driveinfo.totalsize
+i = uint64(i);
 catch e
   dotnetException(e)
 end
 
-i = uint64(i);
 
 end

+stdlib/+dotnet/ram_total.m

@@ -5,9 +5,9 @@
   % https://learn.microsoft.com/en-us/dotnet/api/system.gcmemoryinfo.totalavailablememorybytes
 try
   bytes = System.GC.GetGCMemoryInfo().TotalAvailableMemoryBytes;
+  bytes = uint64(bytes);
 catch
-  bytes = [];
+  bytes = missing;
 end
 
-bytes = uint64(bytes);
 end

+stdlib/+java/device.m

@@ -1,6 +1,6 @@
 function i = device(file)
 
-i = uint64([]);
+i = missing;
 
 if stdlib.strempty(file)
   return
@@ -14,9 +14,9 @@
   p = javaAbsolutePath(file);
   i = javaMethod('getAttribute', 'java.nio.file.Files', p, 'unix:dev', opt);
   % i = java.nio.file.Files.getAttribute(javaAbsolutePath(file), "unix:dev", opt);
+  i = uint64(i);
 catch e
   javaException(e)
 end
 
-i = uint64(i);
 end

+stdlib/+java/disk_available.m

@@ -4,13 +4,14 @@
   o = javaObject('java.io.File', file);
   i = javaMethod('getUsableSpace', o);
   if i < 1
-    i = [];
+    i = missing;
+  else
+    i = uint64(i);
   end
 catch e
   javaException(e)
-  i = [];
+  i = missing;
 end
 
-i = uint64(i);
 
 end

+stdlib/+java/disk_capacity.m

@@ -1,16 +1,17 @@
 function i = disk_capacity(file)
 
+i = missing;
+
 try
   o = javaObject('java.io.File', file);
   i = javaMethod('getTotalSpace', o);
   if i < 1
-    i = [];
+    i = missing;
+  else
+    i = uint64(i);
   end
 catch e
   javaException(e)
-  i = [];
 end
 
-i = uint64(i);
-
 end

+stdlib/+java/inode.m

@@ -1,6 +1,6 @@
 function i = inode(file)
 
-i = uint64([]);
+i = missing;
 
 if stdlib.strempty(file)
   return
@@ -14,9 +14,9 @@
   p = javaAbsolutePath(file);
   i = javaMethod('getAttribute', 'java.nio.file.Files', p, 'unix:ino', opt);
   % i = java.nio.file.Files.getAttribute(javaAbsolutePath(file), "unix:ino", opt);
+  i = uint64(i);
 catch e
   javaException(e)
 end
 
-i = uint64(i);
 end

+stdlib/+java/ram_free.m

@@ -8,11 +8,10 @@
   else
     bytes = b.getFreeMemorySize();
   end
+  bytes = uint64(bytes);
 catch e
   javaException(e)
-  bytes = [];
+  bytes = missing;
 end
 
-bytes = uint64(bytes);
-
 end

+stdlib/+java/ram_total.m

@@ -12,11 +12,11 @@
   else
     bytes = b.getTotalMemorySize();
   end
+  bytes = uint64(bytes);
 catch e
   javaException(e)
-  bytes = [];
+  bytes = missing;
 end
 
-bytes = uint64(bytes);
 
 end

+stdlib/+java/samepath.m

@@ -13,7 +13,7 @@
   end
 catch e
   javaException(e)
-  y = logical([]);
+  y = missing;
 end
 
 end