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Count how many records are in a CSV Python?
...aranteed to be a fixed size, so the only way to count them is to read them all.
– Martijn Pieters♦
Apr 19 '13 at 15:55
1
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How do I create a variable number of variables?
... answered Sep 3 '09 at 12:41
c_harmc_harm
add a comment
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How to determine the Boost version on a system?
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If you want to figure it out manually (rather than in-code), the go to the include directory, and open up version.hpp. BOOST_VERSION takes a bit of deciphering, but BOOST_LIB_VERSION is pretty clear. The value of mine is currently "1_42"
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adito-gateway -华为云免费SSL VPN解决方案 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...tar.gz
解压出来后，移动到usr目录
[root@adito mnt]# mv jdk1.7.0_17 /usr
配置java 参数
alternatives --install /usr/bin/java java /usr/jdk1.7.0_17/jre/bin/java 20000
alternatives --install /usr/bin/javaws javaws /usr/jdk1.7.0_17/jre/bin/javaws 20000
alternatives --install /usr/...
C++ Dynamic Shared Library on Linux
...were for a plugin system, you would use MyClass as a base class and define all the required functions virtual. The plugin author would then derive from MyClass, override the virtuals and implement create_object and destroy_object. Your main application would not need to be changed in any way.
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Convert string to binary in python
...encoding.
In Python 3, then, you can do something like this:
a = "test"
a_bytes = bytes(a, "ascii")
print(' '.join(["{0:b}".format(x) for x in a_bytes]))
The differences between UTF-8 and ascii encoding won't be obvious for simple alphanumeric strings, but will become important if you're process...
Constants in Objective-C
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Overall, great answer, with one glaring caveat: you DO NOT want to test for string equality with the == operator in Objective-C, since it tests memory address. Always use -isEqualToString: for this. You can easily get a different...
System.IO.Packaging
...the docs for any of the actual methods/objects/etc. in the namespace, they all say "Assembly: WindowBase.dll"
– dlev
Aug 31 '11 at 16:39
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CSS: background image on background color
...ch I colored blue if this panel is being selected (clicked on it). Additionally, I add a small sign ( .png image) to that panel, which indicates that the selected panel has been already selected before.
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iPhone: How to get current milliseconds?
... it like this: NSTimeInterval myInterval = NSDate.timeIntervalSince1970;// all those brackets are really old fashioned if you ask me.
– Pizzaiola Gorgonzola
Oct 2 '13 at 13:27
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