Add Rank::[A-H], and File::[ONE..EIGHT] constants.

src/constants.h

@@ -42,3 +42,24 @@ const int DEFAULT_BOARD[64] = {
 	B_ROOK, B_KNIGHT, B_BISHOP, B_QUEEN, B_KING, B_BISHOP, B_KNIGHT, B_ROOK	
 };
 
+namespace Rank{
+	const int A[8] = {A1, A2, A3, A4, A5, A6, A7, A8};
+        const int B[8] = {B1, B2, B3, B4, B5, B6, B7, B8};
+        const int C[8] = {C1, C2, C3, C4, C5, C6, C7, C8};
+	const int D[8] = {D1, D2, D3, D4, D5, D6, D7, D8};
+	const int E[8] = {E1, E2, E3, E4, E5, E6, E7, E8};
+	const int F[8] = {F1, F2, F3, F4, F5, F6, F7, F8};
+	const int G[8] = {G1, G2, G3, G4, G5, G6, G7, G8};
+	const int H[8] = {H1, H2, H3, H4, H5, H6, H7, H8};
+}
+
+namespace File{
+	const int ONE[8] = {A1, B1, C1, D1, E1, F1, G1, H1};
+	const int TWO[8] = {A2, B2, C2, D2, E2, F2, G2, H2};
+	const int THREE[8] = {A3, B3, C3, D3, E3, F3, G3, H3};
+	const int FOUR[8] = {A4, B4, C4, D4, E4, F4, G4, H4};
+	const int FIVE[8] = {A5, B5, C5, D5, E5, F5, G5, H5};
+	const int SIX[8] = {A6, B6, C6, D6, E6, F6, G6, H6};
+	const int SEVEN[8] = {A7, B7, C7, D7, E7, F7, G7, H7};
+	const int EIGHT[8] = {A8, B8, C8, D8, E8, F8, G8, H8};
+}