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adding comparison #2360

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2019-06-28 21:14:58 -07:00
parent db274ebe01
commit 335543b374
9 changed files with 143 additions and 4 deletions
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7
src/ast/seq_decl_plugin.h
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@ -66,6 +66,8 @@ enum seq_op_kind {
OP_STRING_CONST,
OP_STRING_ITOS,
OP_STRING_STOI,
OP_STRING_LT,
OP_STRING_LE,
// internal only operators. Converted to SEQ variants.
_OP_STRING_STRREPL,
_OP_STRING_CONCAT,
@ -226,6 +228,7 @@ public:
bool is_const_char(expr* e, unsigned& c) const;
app* mk_char(unsigned ch) const;
app* mk_le(expr* ch1, expr* ch2) const;
app* mk_lt(expr* ch1, expr* ch2) const;
app* mk_skolem(symbol const& name, unsigned n, expr* const* args, sort* range);
bool is_skolem(expr const* e) const { return is_app_of(e, m_fid, _OP_SEQ_SKOLEM); }
@ -298,6 +301,8 @@ public:
bool is_stoi(expr const* n) const { return is_app_of(n, m_fid, OP_STRING_STOI); }
bool is_in_re(expr const* n) const { return is_app_of(n, m_fid, OP_SEQ_IN_RE); }
bool is_unit(expr const* n) const { return is_app_of(n, m_fid, OP_SEQ_UNIT); }
bool is_lt(expr const* n) const { return is_app_of(n, m_fid, OP_STRING_LT); }
bool is_le(expr const* n) const { return is_app_of(n, m_fid, OP_STRING_LE); }
bool is_string_term(expr const * n) const {
sort * s = get_sort(n);
@ -321,6 +326,8 @@ public:
MATCH_TERNARY(is_replace);
MATCH_BINARY(is_prefix);
MATCH_BINARY(is_suffix);
MATCH_BINARY(is_lt);
MATCH_BINARY(is_le);
MATCH_UNARY(is_itos);
MATCH_UNARY(is_stoi);
MATCH_BINARY(is_in_re);