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seq

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2020-05-17 05:35:32 -07:00
parent 34cc60410f
commit fc8dfe3e40
5 changed files with 50 additions and 47 deletions
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14
src/ast/seq_decl_plugin.h
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@ -17,6 +17,8 @@ Revision History:
Updated to string sequences 2015-12-5
Add SMTLIB 2.6 support 2020-5-17
--*/
#ifndef SEQ_DECL_PLUGIN_H_
#define SEQ_DECL_PLUGIN_H_
@ -103,17 +105,18 @@ enum seq_op_kind {
class zstring {
private:
buffer<unsigned> m_buffer;
bool well_formed() const;
public:
zstring();
static unsigned max_char() { return 196607; }
zstring() {}
zstring(char const* s);
zstring(unsigned sz, unsigned const* s);
zstring(zstring const& other);
zstring(unsigned sz, unsigned const* s) { m_buffer.append(sz, s); SASSERT(well_formed()); }
zstring(zstring const& other): m_buffer(other.m_buffer) {}
zstring(unsigned num_bits, bool const* ch);
zstring(unsigned ch);
zstring& operator=(zstring const& other);
zstring replace(zstring const& src, zstring const& dst) const;
std::string encode() const;
std::string as_string() const;
unsigned length() const { return m_buffer.size(); }
unsigned operator[](unsigned i) const { return m_buffer[i]; }
bool empty() const { return m_buffer.empty(); }
@ -257,9 +260,6 @@ public:
public:
str(seq_util& u): u(u), m(u.m), m_fid(u.m_fid) {}
unsigned min_char_value() const { return 0; }
unsigned max_char_value() const { return 196607; }
sort* mk_seq(sort* s) const { parameter param(s); return m.mk_sort(m_fid, SEQ_SORT, 1, &param); }
sort* mk_string_sort() const { return m.mk_sort(m_fid, _STRING_SORT, 0, nullptr); }
app* mk_empty(sort* s) const { return m.mk_const(m.mk_func_decl(m_fid, OP_SEQ_EMPTY, 0, nullptr, 0, (expr*const*)nullptr, s)); }