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Are Exceptions in C++ really slow
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The main model used today for exceptions (Itanium ABI, VC++ 64 bits) is the Zero-Cost model exceptions.
The idea is that instead of losing time by setting up a guard and explicitly checking for the presence of exceptions everywhere, the compiler generates a side table that maps any p...
Using Eloquent ORM in Laravel to perform search of database using LIKE
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If you need to frequently use LIKE, you can simplify the problem a bit. A custom method like ()...
记一次MongoDB性能问题 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...解决：
MongoDB按需自动生成数据文件：先是<DB>.0，大小是64M，然后是<DB>.1，大小翻番到128M，到了<DB>.5，大小翻番到2G，其后的数据文件就保持在2G大小。为了避免可能出现的问题，可以采用事先手动创建数据文件的策略：
#!/bin...
How does one create an InputStream from a String? [duplicate]
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WhiteFang34WhiteFang34
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a...
How to check if array is empty or does not exist? [duplicate]
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Robby CornelissenRobby Cornelissen
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How to avoid reinstalling packages when building Docker image for Python projects?
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Step 2 : ADD ./requirements.txt /srv/requirements.txt
---> b6c19f0643b5
Removing intermediate container a4d9cb37dff0
Step 3 : RUN pip install -r requirements.txt
---> Running in 4b7a85a64c33
Downloading/unpacking pytest==2.3.4 (from -r requirements.txt (line 1))
Running setup.py (path:...
Is there a way to remove the separator line from a UITableView?
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You can do this in the storyboard / xib editor as well. Just set Seperator to none.
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Quickly find whether a value is present in a C array?
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barak manosbarak manos
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What is the meaning of “non temporal” memory accesses in x86
...ntent is directly written to memory.
Source: http://lwn.net/Articles/255364/
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Where is the Keytool application?
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keytool is part of the standard java distribution.
In a windows 64-bit machine, you would normally find the jdk at
C:\Program Files\Java\jdk1.8.0_121\bin
It is used for managing keys and certificates you can sign things with, in your case, probably a jar file.
If you provide more deta...