Use a constant vector for the sudoku board, delete a FIXME

Author: catamorphism

src/test/bench/sudoku.rs

@@ -126,40 +126,21 @@ fn write_grid(f: io::Writer, g: grid_t) {
      }
 }
 
+const default_grid: [[u8]] = [[0, 4, 0, 6, 0, 0, 0, 7, 2, 0], //0
+                      [0, 0, 8, 0, 2, 0, 0, 0, 0, 0], //1
+                      [7, 0, 0, 8, 0, 0, 0, 0, 0, 0], //2
+                      [0, 0, 0, 5, 0, 0, 0, 0, 0, 0], //3
+                      [0, 5, 0, 0, 0, 3, 6, 0, 0, 0], //4
+                      [6, 8, 0, 0, 0, 0, 0, 9, 0, 0], //5
+                      [0, 9, 5, 0, 0, 6, 0, 7, 0, 0], //6
+                      [0, 0, 0, 0, 4, 0, 0, 6, 0, 0], //7
+                      [4, 0, 0, 0, 0, 7, 2, 0, 3, 0], //8
+                      [0, 0, 0, 0, 0, 0, 0, 0, 0, 0]];
+
 fn main() {
     let args = os::args();
-    let grid = if vec::len(args) == 1u {
-        // FIXME create sudoku inline since nested vec consts dont work yet
-        // (#571)
-        let g = vec::from_fn(10u, |_i| {
-            vec::to_mut(vec::from_elem(10u, 0 as u8))
-        });
-        g[0][1] = 4u8;
-        g[0][3] = 6u8;
-        g[0][7] = 3u8;
-        g[0][8] = 2u8;
-        g[1][2] = 8u8;
-        g[1][4] = 2u8;
-        g[2][0] = 7u8;
-        g[2][3] = 8u8;
-        g[3][3] = 5u8;
-        g[4][1] = 5u8;
-        g[4][5] = 3u8;
-        g[4][6] = 6u8;
-        g[5][0] = 6u8;
-        g[5][1] = 8u8;
-        g[5][7] = 9u8;
-        g[6][1] = 9u8;
-        g[6][2] = 5u8;
-        g[6][5] = 6u8;
-        g[6][7] = 7u8;
-        g[7][4] = 4u8;
-        g[7][7] = 6u8;
-        g[8][0] = 4u8;
-        g[8][5] = 7u8;
-        g[8][6] = 2u8;
-        g[8][8] = 3u8;
-        grid_ctor(g)
+    let grid = if args.len() == 1 {
+        default_grid;
     } else {
         read_grid(io::stdin())
     };