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Why are #ifndef and #define used in C++ header files?
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Is Stu's comment true? I just read stackoverflow.com/questions/228783/… and now I am not so sure.
– Will
Jun 28 '17 at 8:23
add ...
Select all text inside EditText when it gets focus
...beforehand to ensure desired action occurs in the case where the view is already focused
– Bad Loser
Sep 13 '18 at 22:03
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Sqlite or MySql? How to decide? [closed]
...lite team published an article explaining when to use sqlite that is great read. Basically, you want to avoid using sqlite when you have a lot of write concurrency or need to scale to terabytes of data. In many other cases, sqlite is a surprisingly good alternative to a "traditional" database such a...
var.replace is not a function
... I also getting same error, I tried toString() but getting error: cannot read property "toString" is undefined and same for "replace"
– Hitesh Kumar
Jul 13 at 14:28
add a co...
Python Graph Library [closed]
...are two excellent choices:
NetworkX
and
igraph
I like NetworkX, but I read good things about igraph as well. I routinely use NetworkX with graphs with 1 million nodes with no problem (it's about double the overhead of a dict of size V + E)
If you want a feature comparison, see this from the N...
iPhone App 开发第一步：从零到真机调试HelloWorld - 更多技术 - 清泛网 - ...
...过程我也是网上学来的，可参考此文：http://bbs.weiphone.com/read-htm-tid-1628444.html
要注意几个要点就是：（1）引导的iso要用对，在安装系统之前，因为是amd的机器（intel已经可以装lion了，此处不再讨论），应用darwin_snow_legacy.iso...
How to install the Raspberry Pi cross compiler on my Linux host machine?
...e newer Raspbian based on Debian Buster see the following how-to in this thread: https://stackoverflow.com/a/58559140/869402
Pre-requirements
Before you start you need to make sure the following is installed:
apt-get install git rsync cmake ia32-libs
Let's cross compile a Pie!
Start with makin...
JavaScript object: access variable property by name as string [duplicate]
...ng bracket notation.
If you NEED a function for it, here it is:
function read_prop(obj, prop) {
return obj[prop];
}
To answer some of the comments below that aren't directly related to the original question, nested objects can be referenced through multiple brackets. If you have a nested o...
Simple way to create matrix of random numbers
...uniform by any number of distributions supported by this library.
Further reading: https://docs.scipy.org/doc/numpy/reference/routines.random.html
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Find and replace with sed in directory and sub directories
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Since there are also macOS folks reading this one (as I did), the following code worked for me (on 10.14)
egrep -rl '<pattern>' <dir> | xargs -I@ sed -i '' 's/<arg1>/<arg2>/g' @
All other answers using -i and -e do not work on macO...