本文整理匯總了Python中z3.If方法的典型用法代碼示例。如果您正苦於以下問題：Python z3.If方法的具體用法？Python z3.If怎麽用？Python z3.If使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類z3的用法示例。
在下文中一共展示了z3.If方法的10個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Python代碼示例。
示例1: BVS
# 需要導入模塊: import z3 [as 別名]
# 或者: from z3 import If [as 別名]
def BVS(self, ast):
name = ast._encoded_name
if hasattr(ast, 'annotations'):
self.extra_bvs_data[name] = (ast.args, ast.annotations)
else:
self.extra_bvs_data[name] = (ast.args, None)
size = ast.size()
# TODO: Here we can use low level APIs because the check performed by the high level API always results in
# the else branch of the check. This evidence although comes from the execution of the angr and claripy
# test suite so I'm not sure if this assumption would hold on 100% of the cases
bv = z3.BitVecSortRef(z3.Z3_mk_bv_sort(self._context.ref(), size), self._context)
expr = z3.BitVecRef(z3.Z3_mk_const(self._context.ref(), z3.to_symbol(name, self._context), bv.ast), self._context)
#if mn is not None:
# expr = z3.If(z3.ULT(expr, mn), mn, expr, ctx=self._context)
#if mx is not None:
# expr = z3.If(z3.UGT(expr, mx), mx, expr, ctx=self._context)
#if stride is not None:
# expr = (expr // stride) * stride
return expr 示例2: _abs
# 需要導入模塊: import z3 [as 別名]
# 或者: from z3 import If [as 別名]
def _abs(self, z3_value):
return z3.If(z3_value >= 0,z3_value,-z3_value) 示例3: to_bool
# 需要導入模塊: import z3 [as 別名]
# 或者: from z3 import If [as 別名]
def to_bool(e : z3.AstRef):
"""
If `e` is a boolean literal, return its value (True or False).
Otherwise, return None.
"""
if z3.is_true(e):
return True
if z3.is_false(e):
return False
return None 示例4: from_ExprCond
# 需要導入模塊: import z3 [as 別名]
# 或者: from z3 import If [as 別名]
def from_ExprCond(self, expr):
cond = self.from_expr(expr.cond)
src1 = self.from_expr(expr.src1)
src2 = self.from_expr(expr.src2)
return z3.If(cond != 0, src1, src2) 示例5: _sdivC
# 需要導入模塊: import z3 [as 別名]
# 或者: from z3 import If [as 別名]
def _sdivC(self, num, den):
"""Divide (signed) @num by @den (z3 values) as C would
See modint.__div__ for implementation choice
"""
result_sign = z3.If(num * den >= 0,
z3.BitVecVal(1, num.size()),
z3.BitVecVal(-1, num.size()),
)
return z3.UDiv(self._abs(num), self._abs(den)) * result_sign 示例6: MSTORE
# 需要導入模塊: import z3 [as 別名]
# 或者: from z3 import If [as 別名]
def MSTORE(self, gstate, index, value):
if isinstance(value, z3.BoolRef):
value = z3.If(value, z3.BitVecVal(1, 256), z3.BitVecVal(0, 256))
value_bytes = svm_utils.split_bv_into_bytes(value)
for i in range(32):
if svm_utils.is_bv_concrete(index):
gstate.mstate.memory_dict[svm_utils.get_concrete_int(index)+i] = value_bytes[i]
gstate.mstate.memory = z3.Store(gstate.mstate.memory, index+i, value_bytes[i]) 示例7: convert_to_bitvec
# 需要導入模塊: import z3 [as 別名]
# 或者: from z3 import If [as 別名]
def convert_to_bitvec(val):
if isinstance(val, z3.BoolRef):
return z3.If(val, z3.BitVecVal(1, 256), z3.BitVecVal(0, 256))
elif isinstance(val, bool):
return z3.BitVecVal(1, 256) if val else z3.BitVecVal(0, 256)
elif isinstance(val, int):
return z3.BitVecVal(val, 256)
else:
return z3.simplify(val) 示例8: z3crc32
# 需要導入模塊: import z3 [as 別名]
# 或者: from z3 import If [as 別名]
def z3crc32(bytes, hash_table_size): # computes the crc32 checksum in z3 format
checksum = 0x00000000ffffffff
for byte in bytes:
checksum ^= z3.ZeroExt(56, byte) & 0xff
for _ in range(8): # test each bit in the byte we just xor'd in
checksum = z3.If(checksum & 1 == z3.BitVecVal(1, 64),
z3.LShR(checksum, 1) ^ 0xedb88320, # the binary representation of the CRC-32 polynomial
z3.LShR(checksum, 1))
return (checksum ^ 0xffffffff) % hash_table_size 示例9: hash3
# 需要導入模塊: import z3 [as 別名]
# 或者: from z3 import If [as 別名]
def hash3(name):
h = z3.BitVecVal(0, 32)
for i in range(len(name)):
for j in range(8):
h = z3.If(z3.LShR(name[i], j) & 1 == 1, (h + 1) & 0xff, h)
h &= 0x1f
return h 示例10: z3Node
# 需要導入模塊: import z3 [as 別名]
# 或者: from z3 import If [as 別名]
def z3Node(self):
return z3.If(self.cond.z3Node(), self.thn.z3Node(), self.els.z3Node())