Change size from ioctl to allocate and read window buffer with fewer …

…objects

CHANGELOG.md

@@ -5,6 +5,7 @@
 ### Changed
 * Change the ioctl system call support check to use the output method
 * Change size from ioctl to extract window buffer format and length to constants
+* Change size from ioctl to allocate and read window buffer with fewer objects
 
 ### Fixed
 * Fix ioctl call test to stub terminal size encoding for big-endian systems

lib/tty/screen.rb

@@ -210,14 +210,14 @@ def size_from_io_console(verbose: false)
       #
       # @api private
       def size_from_ioctl
-        buffer = ([0] * TIOCGWINSZ_BUF_LEN).pack(TIOCGWINSZ_BUF_FMT)
+        buffer = Array.new(TIOCGWINSZ_BUF_LEN, 0).pack(TIOCGWINSZ_BUF_FMT)
 
         if ioctl?(TIOCGWINSZ, buffer) ||
            ioctl?(TIOCGWINSZ_PPC, buffer) ||
            ioctl?(TIOCGWINSZ_SOL, buffer)
 
-          rows, cols, = buffer.unpack(TIOCGWINSZ_BUF_FMT)[0..1]
-          return [rows, cols] if nonzero_column?(cols)
+          rows, cols, = buffer.unpack(TIOCGWINSZ_BUF_FMT)
+          [rows, cols] if nonzero_column?(cols)
         end
       end