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逆向工程——二进制炸弹(CSAPP Project) - 操作系统(内核) - 清泛网 - 专注...
...两个字符串，然后比较它们是否相等吗？
可以看到0x8048b22和0x8048b27指令中分别放入了两个字符串，一个在地址0x8049678中，另一个在0x8(%ebp)中。而0x8(%ebp)是函数phase_1的参数，所以依此可以判断0x8(%ebp)的内存地址中的值是我们输入...
Prevent “overscrolling” of web page
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@user1585345 I've tested this right now in Chrome 38 again on OS X and it still works (also in Safari). Here's the file I'm using. Can you test it with this file? Direct link to the file on sendspace.com.
– insertusername...
Printf width specifier to maintain precision of floating-point value
...bers.
OneSeventh before = 0.1428571428571428 214571170656199683435261249542236328125
OneSeventh = 0.1428571428571428 49212692681248881854116916656494140625
OneSeventh after = 0.1428571428571428 769682682968777953647077083587646484375
Printing the exact decimal representation of a double h...
Does Swift support reflection?
...From mchambers gist, here:
https://gist.github.com/mchambers/fb9da554898dae3e54f2
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How to hash a string into 8 digits?
...$ python3 -V
Python 3.4.2
$ python3 -c 'print(hash("foo"))'
5790391865899772265
$ python3 -c 'print(hash("foo"))'
-8152690834165248934
This means the hash()-based solution suggested, which can be shortened to just:
hash(s) % 10**8
will only return the same value within a given script run:
#Pyth...
What's the state of the art in email validation for Rails?
...r complex†) EmailValidator to suit your needs.
eg: - your model:
class TestUser
include Mongoid::Document
field :email, type: String
validates :email, email: true
end
Your validator (goes in app/validators/email_validator.rb)
class EmailValidator < ActiveModel::EachValidator
EM...
Detect If Browser Tab Has Focus
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@Ajedi32 Thanks. I'll need to do some tests and digging to see what it still relevant, and what can be left out now.
– Ilija
Jan 28 '15 at 10:43
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What is a good regular expression to match a URL? [duplicate]
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For got to mention use this site gskinner.com/RegExr to test Regex and view common samples
– Daveo
Sep 28 '10 at 3:16
8
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How to check if remote branch exists on a given remote repository?
...he most idiomatic solution. The result can be checked directly in a shell test or by checking the status variable $?.
$ git ls-remote --exit-code --heads git@github.com:user/repo.git branch-name
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Find out how much memory is being used by an object in Python [duplicate]
...the objects __sizeof__ might be misleading.
Using the bregman.suite, some tests with sys.getsizeof output a copy of an array object (data) in an object instance as being bigger than the object itself (mfcc).
>>> mfcc = MelFrequencyCepstrum(filepath, params)
>>> data = mfcc.X[:]
&...