move value factories to model

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

src/model/numeral_factory.cpp

@@ -0,0 +1,52 @@
+/*++
+Copyright (c) 2006 Microsoft Corporation
+
+Module Name:
+
+    numeral_factory.cpp
+
+Abstract:
+
+    <abstract>
+
+Author:
+
+    Leonardo de Moura (leonardo) 2008-10-28.
+
+Revision History:
+
+--*/
+#include "ast/ast_pp.h"
+#include "model/numeral_factory.h"
+
+app * arith_factory::mk_value_core(rational const & val, sort * s) {
+    return m_util.mk_numeral(val, s);
+}
+
+arith_factory::arith_factory(ast_manager & m):
+    numeral_factory(m, m.mk_family_id("arith")),
+    m_util(m) {
+}
+
+arith_factory::~arith_factory() {
+}
+
+app * arith_factory::mk_num_value(rational const & val, bool is_int) {
+    return numeral_factory::mk_value(val, is_int ? m_util.mk_int() : m_util.mk_real());
+}
+
+bv_factory::bv_factory(ast_manager & m):
+    numeral_factory(m, m.mk_family_id("bv")),
+    m_util(m) {
+}
+
+bv_factory::~bv_factory() {
+}
+
+app * bv_factory::mk_value_core(rational const & val, sort * s) {
+    return m_util.mk_numeral(val, s);
+}
+
+app * bv_factory::mk_num_value(rational const & val, unsigned bv_size) {
+    return numeral_factory::mk_value(val, m_util.mk_sort(bv_size));
+}