fix test failure on 32 bit windows

andrewrk · andrewrk · commit 403a46abccbc · 2017-11-10T16:03:14.000-05:00
diff --git a/std/io.zig b/std/io.zig
@@ -273,7 +273,9 @@ pub const File = struct {
                     else => os.unexpectedErrorWindows(err),
                 };
             }
-            return @bitCast(usize, file_size);
+            if (file_size < 0)
+                return error.Overflow;
+            return math.cast(usize, u64(file_size));
         } else {
             unreachable;
         }

Original file line number	Diff line number	Diff line change
`@@ -273,7 +273,9 @@ pub const File = struct {`
`273`	`273`	`else => os.unexpectedErrorWindows(err),`
`274`	`274`	`};`
`275`	`275`	`}`
`276`		`- return @bitCast(usize, file_size);`
	`276`	`+ if (file_size < 0)`
	`277`	`+ return error.Overflow;`
	`278`	`+ return math.cast(usize, u64(file_size));`
`277`	`279`	`} else {`
`278`	`280`	`unreachable;`
`279`	`281`	`}`