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fix #5014

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2021-02-12 16:01:33 -08:00
parent 85f0084e9c
commit 612cc5cfba
9 changed files with 53 additions and 6 deletions
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7
src/ast/char_decl_plugin.h
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@ -32,7 +32,8 @@ enum char_sort_kind {
enum char_op_kind {
OP_CHAR_CONST,
OP_CHAR_LE
OP_CHAR_LE,
OP_CHAR_TO_INT
};
class char_decl_plugin : public decl_plugin {
@ -76,12 +77,16 @@ public:
app* mk_le(expr* a, expr* b);
app* mk_to_int(expr* a) { return m_manager->mk_app(m_family_id, OP_CHAR_TO_INT, 1, &a); }
bool is_le(expr const* e) const { return is_app_of(e, m_family_id, OP_CHAR_LE); }
bool is_const_char(expr const* e, unsigned& c) const {
return is_app_of(e, m_family_id, OP_CHAR_CONST) && (c = to_app(e)->get_parameter(0).get_int(), true);
}
bool is_to_int(expr const* e) const { return is_app_of(e, m_family_id, OP_CHAR_TO_INT); }
bool unicode() const { return m_unicode; }
unsigned max_char() const { return m_unicode ? zstring::unicode_max_char() : zstring::ascii_max_char(); }
unsigned num_bits() const { return m_unicode ? zstring::unicode_num_bits() : zstring::ascii_num_bits(); }