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How to run a shell script on a Unix console or Mac terminal?
...rences such as is the case between sh and bash).
A note on /usr/bin/env
Most commonly, you'll see hash bangs like so:
#!/bin/bash
The result is that the kernel will run the program /bin/bash to interpret the script. Unfortunately, bash is not always shipped by default, and it is not always ava...
Fast check for NaN in NumPy
...e of NaNs than in their absence. It also seems to get slower as NaNs get closer to the start of the array. On the other hand, sum's throughput seems constant regardless of whether there are NaNs and where they're located:
In [40]: x = np.random.rand(100000)
In [41]: %timeit np.isnan(np.min(x))
100...
Is it worthwile to learn assembly language? [closed]
...thermore, the conventional wisdom is to not try to hand-optimise assembly most of the time but let the compiler worry about it. When you see some examples of the twisted things that compilers generate, you will better understand why the conventional wisdom holds.
Example: LFSRs run fast with the ro...
Apple Pay入华遇阻 只因BAT太受欢迎？ - 资讯 - 清泛网 - 专注C/C++及内核技术
...更加分散，可以借此建立起组合营销的渠道，最终惠及每一个商户。另外，常年返现不打烊的作法，能为商户带来稳定的客源，避免传统的补贴终止而造成用户的流失，为商家的长期发展创造了良好的环境和条件。
第二，降低...
How to create a file with a given size in Linux?
For testing purposes I have to generate a file of a certain size (to test an upload limit).
13 Answers
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How do I parse XML in Python?
...e number in the XML source, etc. that can be very useful in several scenarios.
– Saheel Godhane
Jan 21 '15 at 22:23
13
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How to create a file in memory for user to download, but not through server?
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This is not a cross browser solution but definitely something worth looking at. For example IE limits support to data uri. IE 8 limits size to 32KB and IE 7 and lower doesn't support at all.
– Darin Dimitrov
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How to ignore xargs commands if stdin input is empty?
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@wedi - OSX has BSD userspace, so this sort of thing will happen frequently. You can work around it by using homebrew to install the GNU fileutils.
– edk750
Jul 20 '16 at 19:41
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How do I set the size of Emacs' window?
...ect the size of the screen I'm starting emacs on, and adjust the size and position the window it is starting in (I guess that's the frame in emacs-speak) accordingly. I'm trying to set up my .emacs so that I always get a "reasonably-big" window with it's top-left corner near the top-left of my scree...
EXC_BAD_ACCESS signal received
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From your description I suspect the most likely explanation is that you have some error in your memory management. You said you've been working on iPhone development for a few weeks, but not whether you are experienced with Objective C in general. If you've come...