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max value of integer
...(otherwise it is reserved for the sign bit).
Here's a short table of the possible values for the possible data types:
width minimum maximum
signed 8 bit -128 +127
signed 16 bit ...
Convert datetime to Unix timestamp and convert it back in python
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@J.F.Sebastian: I didn't want to cover all of the three possibilities in detail, but I guess you're right, I should.
– abarnert
Nov 6 '13 at 0:52
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Ideal way to cancel an executing AsyncTask
...s thats right, but this way background thread doesn't get interrupted, suppose the case when uploading image, the uploading process continues in background and we didn't get onPostExecute called.
– umesh
Jan 21 '14 at 13:04
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Convert String to double in Java
...l values, you need to replace "," in the number to "."
String number = "123,321";
double value = Double.parseDouble( number.replace(",",".") );
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When should I use mmap for file access?
POSIX environments provide at least two ways of accessing files. There's the standard system calls open() , read() , write() , and friends, but there's also the option of using mmap() to map the file into virtual memory.
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Best way to generate random file names in Python
...e any regular file. Note: By default the file will be deleted when it is
closed. However, if the delete parameter is False, the file is not
automatically deleted.
Full parameter set:
tempfile.NamedTemporaryFile([mode='w+b'[, bufsize=-1[, suffix=''[, prefix='tmp'[, dir=None[, delete=True]]]]]])
i...
实现一个简单的服务端推方案 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...写Nginx共享内存的话，可以这样操作：
shell> curl -d "id=123" http://<HOST>/config
如果要读Nginx共享内存的话，可以这样操作：
shell> curl http://<HOST>/config?field=id
注：实际应用时，应该加上权限判断逻辑，比如只有限定的IP地址才能...
How to develop Desktop Apps using HTML/CSS/JavaScript? [closed]
... a coworker of mine recently left for Spotify and said he will be working mostly in JavaScript for the Spotify Desktop app. He said it uses "Chrome frame" and everything inside is done like a web app (HTML/JS/CSS).
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what is Promotional and Feature graphic in Android Market/Play Store?
..."The promo graphic is used for promotions on older versions of the Android OS (earlier than 4.0)." (Adding info here as it is the top answer)
– MZB
May 24 '17 at 15:35
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Vagrant error: NFS is reporting that your exports file is invalid
...p:
Vagrant 1.1.2
VirtualBox 4.2.10
I was having the same issue on Mac (OS X 10.9 (Mavericks)), but rolling back to these versions seemed to fix it for me.
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