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How Do I Use Factory Girl To Generate A Paperclip Attachment?
...nd
end
In the above example, spec/photos/test.png needs to exist in your application's root directory before running your tests.
Note, that FactoryBot is a new name for FactoryGirl.
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impro...
How do the likely/unlikely macros in the Linux kernel work and what is their benefit?
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Let's decompile to see what GCC 4.8 does with it
Without __builtin_expect
#include "stdio.h"
#include "time.h"
int main() {
/* Use time to prevent it from being optimized away. */
int i = !time(NULL);
if (i)
printf("%d\n", i);
puts("a");
return 0;
}
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Hide scroll bar, but while still being able to scroll
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This approach won't cover all browsers, and will be very specific to the browser's version you are working with during the development.
– Itsik Avidan
Oct 22 '14 at 12:23
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How to find a Java Memory Leak
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I use following approach to finding memory leaks in Java. I've used jProfiler with great success, but I believe that any specialized tool with graphing capabilities (diffs are easier to analyze in graphical form) will work.
Start the appli...
How can I force division to be floating point? Division keeps rounding down to 0?
...hon 3, it produces a float. We can get the new behaviour by importing from __future__.
>>> from __future__ import division
>>> a = 4
>>> b = 6
>>> c = a / b
>>> c
0.66666666666666663
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Linux反编译全攻略 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...可以到这来下载:
http://www.crackmes.de/users/veneta/crackmes/linux_crackme_v2 。古人云“工欲善其事，必先利其器”，本文中所用到的工具及操作平台罗列如下:
操作平台: gentoo 2004.3 # kernel 2.6.9
逆向工具:
反汇编 -- objdump （这个工...
C# Test if user has write access to a folder
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I appreciate that this is a little late in the day for this post, but you might find this bit of code useful.
string path = @"c:\temp";
string NtAccountName = @"MyDomain\MyUserOrGroup";
DirectoryInfo di = new DirectoryInfo(pa...
What's the best way to send a signal to all members of a process group?
...st the pids of the children then use: ps -o pid --no-headers --ppid $PARENT_PID
– Szymon Jeż
Sep 15 '11 at 11:19
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CoInitialize浅析一 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
... push [ebp+8] ; pvReserved
769B2A2E call _CoInitializeEx@8 ; CoInitializeEx(x,x)
769B2A33 pop ebp
769B2A34 retn 4
可以看到，其中的实现还是比较简单的，它只是简单地调用了CoInitializeEx，将第二个...
Java “user.dir” property - what exactly does it mean?
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Typically this is the directory where your app (java) was started (working dir). "Typically" because it can be changed, eg when you run an app with Runtime.exec(String[] cmdarray, String[] envp, File dir)
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