本文整理匯總了Python中ctypes.c_char.from_address方法的典型用法代碼示例。如果您正苦於以下問題：Python c_char.from_address方法的具體用法？Python c_char.from_address怎麽用？Python c_char.from_address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ctypes.c_char的用法示例。
在下文中一共展示了c_char.from_address方法的7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: test_int_from_address
# 需要導入模塊: from ctypes import c_char [as 別名]
# 或者: from ctypes.c_char import from_address [as 別名]
def test_int_from_address(self):
from array import array
for t in signed_types + unsigned_types:
# the array module doesn't support all format codes
# (no 'q' or 'Q')
try:
array(t._type_)
except ValueError:
continue
a = array(t._type_, [100])
# v now is an integer at an 'external' memory location
v = t.from_address(a.buffer_info()[0])
self.assertEqual(v.value, a[0])
self.assertEqual(type(v), t)
# changing the value at the memory location changes v's value also
a[0] = 42
self.assertEqual(v.value, a[0]) 示例2: test_char_from_address
# 需要導入模塊: from ctypes import c_char [as 別名]
# 或者: from ctypes.c_char import from_address [as 別名]
def test_char_from_address(self):
from ctypes import c_char
from array import array
a = array('c', 'x')
v = c_char.from_address(a.buffer_info()[0])
self.assertEqual(v.value, a[0])
self.assertTrue(type(v) is c_char)
a[0] = '?'
self.assertEqual(v.value, a[0])
# array does not support c_bool / 't'
# def test_bool_from_address(self):
# from ctypes import c_bool
# from array import array
# a = array(c_bool._type_, [True])
# v = t.from_address(a.buffer_info()[0])
# self.assertEqual(v.value, a[0])
# self.assertEqual(type(v) is t)
# a[0] = False
# self.assertEqual(v.value, a[0])
# self.assertEqual(type(v) is t) 示例3: test_float_from_address
# 需要導入模塊: from ctypes import c_char [as 別名]
# 或者: from ctypes.c_char import from_address [as 別名]
def test_float_from_address(self):
from array import array
for t in float_types:
a = array(t._type_, [3.14])
v = t.from_address(a.buffer_info()[0])
self.assertEqual(v.value, a[0])
self.assertIs(type(v), t)
a[0] = 2.3456e17
self.assertEqual(v.value, a[0])
self.assertIs(type(v), t) 示例4: test_char_from_address
# 需要導入模塊: from ctypes import c_char [as 別名]
# 或者: from ctypes.c_char import from_address [as 別名]
def test_char_from_address(self):
from ctypes import c_char
from array import array
a = array('c', 'x')
v = c_char.from_address(a.buffer_info()[0])
self.assertEqual(v.value, a[0])
self.assertIs(type(v), c_char)
a[0] = '?'
self.assertEqual(v.value, a[0])
# array does not support c_bool / 't' 示例5: test_bool_from_address
# 需要導入模塊: from ctypes import c_char [as 別名]
# 或者: from ctypes.c_char import from_address [as 別名]
def test_bool_from_address(self):
from ctypes import c_bool
from array import array
a = array(c_bool._type_, [True])
v = t.from_address(a.buffer_info()[0])
self.assertEqual(v.value, a[0])
self.assertEqual(type(v) is t)
a[0] = False
self.assertEqual(v.value, a[0])
self.assertEqual(type(v) is t) 示例6: test_float_from_address
# 需要導入模塊: from ctypes import c_char [as 別名]
# 或者: from ctypes.c_char import from_address [as 別名]
def test_float_from_address(self):
from array import array
for t in float_types:
a = array(t._type_, [3.14])
v = t.from_address(a.buffer_info()[0])
self.assertEqual(v.value, a[0])
self.assertTrue(type(v) is t)
a[0] = 2.3456e17
self.assertEqual(v.value, a[0])
self.assertTrue(type(v) is t) 示例7: test_char_from_address
# 需要導入模塊: from ctypes import c_char [as 別名]
# 或者: from ctypes.c_char import from_address [as 別名]
def test_char_from_address(self):
from ctypes import c_char
from array import array
a = array('b', [0])
a[0] = ord('x')
v = c_char.from_address(a.buffer_info()[0])
self.assertEqual(v.value, b'x')
self.assertIs(type(v), c_char)
a[0] = ord('?')
self.assertEqual(v.value, b'?')
# array does not support c_bool / 't'