+//////////
+// `construct on first use' chest of numbers
+//////////
+
+// numeric -12
+numeric const & _num_12(void)
+{
+ const static ex e = ex(numeric(-12));
+ const static numeric * n = static_cast<const numeric *>(e.bp);
+ return *n;
+}
+
+ex const & _ex_12(void)
+{
+ static ex * e = new ex(_num_12());
+ return *e;
+}
+
+// numeric -11
+numeric const & _num_11(void)
+{
+ const static ex e = ex(numeric(-11));
+ const static numeric * n = static_cast<const numeric *>(e.bp);
+ return *n;
+}
+
+ex const & _ex_11(void)
+{
+ static ex * e = new ex(_num_11());
+ return *e;
+}
+
+// numeric -10
+numeric const & _num_10(void)
+{
+ const static ex e = ex(numeric(-10));
+ const static numeric * n = static_cast<const numeric *>(e.bp);
+ return *n;
+}
+
+ex const & _ex_10(void)
+{
+ static ex * e = new ex(_num_10());
+ return *e;
+}
+
+// numeric -9
+numeric const & _num_9(void)
+{
+ const static ex e = ex(numeric(-9));
+ const static numeric * n = static_cast<const numeric *>(e.bp);
+ return *n;
+}
+
+ex const & _ex_9(void)
+{
+ static ex * e = new ex(_num_9());
+ return *e;
+}
+
+// numeric -8
+numeric const & _num_8(void)
+{
+ const static ex e = ex(numeric(-8));
+ const static numeric * n = static_cast<const numeric *>(e.bp);
+ return *n;
+}
+
+ex const & _ex_8(void)
+{
+ static ex * e = new ex(_num_8());
+ return *e;
+}
+
+// numeric -7
+numeric const & _num_7(void)
+{
+ const static ex e = ex(numeric(-7));
+ const static numeric * n = static_cast<const numeric *>(e.bp);
+ return *n;
+}
+
+ex const & _ex_7(void)
+{
+ static ex * e = new ex(_num_7());
+ return *e;
+}
+
+// numeric -6
+numeric const & _num_6(void)
+{
+ const static ex e = ex(numeric(-6));
+ const static numeric * n = static_cast<const numeric *>(e.bp);
+ return *n;
+}
+
+ex const & _ex_6(void)
+{
+ static ex * e = new ex(_num_6());
+ return *e;
+}
+
+// numeric -5
+numeric const & _num_5(void)
+{
+ const static ex e = ex(numeric(-5));
+ const static numeric * n = static_cast<const numeric *>(e.bp);
+ return *n;
+}
+
+ex const & _ex_5(void)
+{
+ static ex * e = new ex(_num_5());
+ return *e;
+}
+
+// numeric -4
+numeric const & _num_4(void)
+{
+ const static ex e = ex(numeric(-4));
+ const static numeric * n = static_cast<const numeric *>(e.bp);
+ return *n;
+}
+
+ex const & _ex_4(void)
+{
+ static ex * e = new ex(_num_4());
+ return *e;
+}
+
+// numeric -3
+numeric const & _num_3(void)
+{
+ const static ex e = ex(numeric(-3));
+ const static numeric * n = static_cast<const numeric *>(e.bp);
+ return *n;
+}
+
+ex const & _ex_3(void)
+{
+ static ex * e = new ex(_num_3());
+ return *e;
+}
+
+// numeric -2
+numeric const & _num_2(void)
+{
+ const static ex e = ex(numeric(-2));
+ const static numeric * n = static_cast<const numeric *>(e.bp);
+ return *n;
+}
+
+ex const & _ex_2(void)
+{
+ static ex * e = new ex(_num_2());
+ return *e;
+}
+
+// numeric -1
+numeric const & _num_1(void)
+{
+ const static ex e = ex(numeric(-1));
+ const static numeric * n = static_cast<const numeric *>(e.bp);
+ return *n;
+}
+
+ex const & _ex_1(void)
+{
+ static ex * e = new ex(_num_1());
+ return *e;
+}
+
+// numeric -1/2
+numeric const & _num_1_2(void)
+{
+ const static ex e = ex(numeric(-1,2));
+ const static numeric * n = static_cast<const numeric *>(e.bp);
+ return *n;
+}
+
+ex const & _ex_1_2(void)
+{
+ static ex * e = new ex(_num_1_2());
+ return *e;
+}
+
+// numeric -1/3
+numeric const & _num_1_3(void)
+{
+ const static ex e = ex(numeric(-1,3));
+ const static numeric * n = static_cast<const numeric *>(e.bp);
+ return *n;
+}
+
+ex const & _ex_1_3(void)
+{
+ static ex * e = new ex(_num_1_3());
+ return *e;
+}
+
+// numeric 0
+numeric const & _num0(void)
+{
+ const static ex e = ex(numeric(0));
+ const static numeric * n = static_cast<const numeric *>(e.bp);
+ return *n;
+}
+
+ex const & _ex0(void)
+{
+ static ex * e = new ex(_num0());
+ return *e;
+}
+
+// numeric 1/3
+numeric const & _num1_3(void)
+{
+ const static ex e = ex(numeric(1,3));
+ const static numeric * n = static_cast<const numeric *>(e.bp);
+ return *n;
+}
+
+ex const & _ex1_3(void)
+{
+ static ex * e = new ex(_num1_3());
+ return *e;
+}
+
+// numeric 1/2
+numeric const & _num1_2(void)
+{
+ const static ex e = ex(numeric(1,2));
+ const static numeric * n = static_cast<const numeric *>(e.bp);
+ return *n;
+}
+
+ex const & _ex1_2(void)
+{
+ static ex * e = new ex(_num1_2());
+ return *e;
+}
+
+// numeric 1
+numeric const & _num1(void)
+{
+ const static ex e = ex(numeric(1));
+ const static numeric * n = static_cast<const numeric *>(e.bp);
+ return *n;
+}
+
+ex const & _ex1(void)
+{
+ static ex * e = new ex(_num1());
+ return *e;
+}
+
+// numeric 2
+numeric const & _num2(void)
+{
+ const static ex e = ex(numeric(2));
+ const static numeric * n = static_cast<const numeric *>(e.bp);
+ return *n;
+}
+
+ex const & _ex2(void)
+{
+ static ex * e = new ex(_num2());
+ return *e;
+}
+
+// numeric 3
+numeric const & _num3(void)
+{
+ const static ex e = ex(numeric(3));
+ const static numeric * n = static_cast<const numeric *>(e.bp);
+ return *n;
+}
+
+ex const & _ex3(void)
+{
+ static ex * e = new ex(_num3());
+ return *e;
+}
+
+// numeric 4
+numeric const & _num4(void)
+{
+ const static ex e = ex(numeric(4));
+ const static numeric * n = static_cast<const numeric *>(e.bp);
+ return *n;
+}
+
+ex const & _ex4(void)
+{
+ static ex * e = new ex(_num4());
+ return *e;
+}
+
+// numeric 5
+numeric const & _num5(void)
+{
+ const static ex e = ex(numeric(5));
+ const static numeric * n = static_cast<const numeric *>(e.bp);
+ return *n;
+}
+
+ex const & _ex5(void)
+{
+ static ex * e = new ex(_num5());
+ return *e;
+}
+
+// numeric 6
+numeric const & _num6(void)
+{
+ const static ex e = ex(numeric(6));
+ const static numeric * n = static_cast<const numeric *>(e.bp);
+ return *n;
+}
+
+ex const & _ex6(void)
+{
+ static ex * e = new ex(_num6());
+ return *e;
+}
+
+// numeric 7
+numeric const & _num7(void)
+{
+ const static ex e = ex(numeric(7));
+ const static numeric * n = static_cast<const numeric *>(e.bp);
+ return *n;
+}
+
+ex const & _ex7(void)
+{
+ static ex * e = new ex(_num7());
+ return *e;
+}
+
+// numeric 8
+numeric const & _num8(void)
+{
+ const static ex e = ex(numeric(8));
+ const static numeric * n = static_cast<const numeric *>(e.bp);
+ return *n;
+}
+
+ex const & _ex8(void)
+{
+ static ex * e = new ex(_num8());
+ return *e;
+}
+
+// numeric 9
+numeric const & _num9(void)
+{
+ const static ex e = ex(numeric(9));
+ const static numeric * n = static_cast<const numeric *>(e.bp);
+ return *n;
+}
+
+ex const & _ex9(void)
+{
+ static ex * e = new ex(_num9());
+ return *e;
+}
+
+// numeric 10
+numeric const & _num10(void)
+{
+ const static ex e = ex(numeric(10));
+ const static numeric * n = static_cast<const numeric *>(e.bp);
+ return *n;
+}
+
+ex const & _ex10(void)
+{
+ static ex * e = new ex(_num10());
+ return *e;
+}
+
+// numeric 11
+numeric const & _num11(void)
+{
+ const static ex e = ex(numeric(11));
+ const static numeric * n = static_cast<const numeric *>(e.bp);
+ return *n;
+}
+
+ex const & _ex11(void)
+{
+ static ex * e = new ex(_num11());
+ return *e;
+}
+
+// numeric 12
+numeric const & _num12(void)
+{
+ const static ex e = ex(numeric(12));
+ const static numeric * n = static_cast<const numeric *>(e.bp);
+ return *n;
+}
+
+ex const & _ex12(void)
+{
+ static ex * e = new ex(_num12());
+ return *e;
+}