mirrors/z3
3
0
Fork 0
mirror of https://github.com/Z3Prover/z3 synced 2025-04-23 09:05:31 +00:00
Code Activity

merge useful utilities from qsat

Browse source 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2016-03-19 12:01:44 -07:00
parent f951372f03
commit f175f864ec
32 changed files with 323 additions and 38 deletions
Download patch file Download diff file Expand all files Collapse all files

8
src/api/c++/z3++.h
View file

@ -604,8 +604,16 @@ namespace z3 {
/**
\brief Return true if this expression is a numeral.
Specialized functions also return representations for the numerals as
small integers, 64 bit integers or rational or decimal strings.
*/
bool is_numeral() const { return kind() == Z3_NUMERAL_AST; }
bool is_numeral_i64(__int64& i) const { bool r = Z3_get_numeral_int64(ctx(), m_ast, &i); return r;}
bool is_numeral_u64(__uint64& i) const { bool r = Z3_get_numeral_uint64(ctx(), m_ast, &i); return r;}
bool is_numeral_i(int& i) const { bool r = Z3_get_numeral_int(ctx(), m_ast, &i); return r;}
bool is_numeral_u(unsigned& i) const { bool r = Z3_get_numeral_uint(ctx(), m_ast, &i); return r;}
bool is_numeral(std::string& s) const { if (!is_numeral()) return false; s = Z3_get_numeral_string(ctx(), m_ast); return true; }
bool is_numeral(std::string& s, unsigned precision) const { if (!is_numeral()) return false; s = Z3_get_numeral_decimal_string(ctx(), m_ast, precision); return true; }
/**
\brief Return true if this expression is an application.
*/

12
src/api/python/z3.py
View file

@ -3940,7 +3940,7 @@ class ArraySortRef(SortRef):
>>> A.range()
Bool
"""
return _to_sort_ref(Z3_get_array_sort_range(self.ctx_ref(), self.ast), self.ctx)
return _to_sort_ref(Z3_get_array_sort_range(self.ctx_ref(), self.ast), self.ctx)
class ArrayRef(ExprRef):
"""Array expressions. """
@ -4162,6 +4162,16 @@ def Select(a, i):
_z3_assert(is_array(a), "First argument must be a Z3 array expression")
return a[i]
def Default(a):
""" Return a default value for array expression.
>>> b = K(IntSort(), 1)
>>> prove(Default(b) == 1)
proved
"""
if __debug__:
_z3_assert(is_array(a), "First argument must be a Z3 array expression")
return a.mk_default()
def Map(f, *args):
"""Return a Z3 map array expression.