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MD5 algorithm in Objective-C
...ENGTH];
CC_MD5( cStr, (int)strlen(cStr), result ); // This is the md5 call
return [NSString stringWithFormat:
@"%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",
result[0], result[1], result[2], result[3],
result[4], result[5], result[6], result[7],
...
Proper way to use **kwargs in Python
...*kwargs):
...etc...
this is not true. In the latter case, f can be called as f(23, 42), while the former case accepts named arguments only -- no positional calls. Often you want to allow the caller maximum flexibility and therefore the second form, as most answers assert, is preferable: but ...
Oracle 11.2.0.4 RAC FOR redhat 6.4 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术
...缓存的情况下可能会报目录不存在的错误，无视
yum clean all
yum makecache
4、安装vncserver，xterm并配置
yum -y install xterm*
yum install -y tigervnc-server
chkconfig --level 345 vncserver on
配置vnc密码
Vncserver
配置为使用gnome桌面
修改 /ro...
git command to move a folder inside another
...
Command:
$ git mv oldFolderName newFolderName
It usually works fine.
Error "bad source ..." typically indicates that after last commit there were some renames in the source directory and hence git mv cannot find the expected file.
The solution is simple - just commit before ...
How do you turn a Mongoose document into a plain object?
...ng is that JSON.parse(JSON.encode(doc)) works and returns an object with all of the correct properties. Is there a better way to do this?
...
How can I quantify difference between two images?
...s on the first image to edges on the second.
Is there noise in the image?
All sensors pollute the image with some amount of noise. Low-cost sensors have more noise. You may wish to apply some noise reduction before you compare images. Blur is the most simple (but not the best) approach here.
What k...
Calling a function of a module by using its name (a string)
What is the best way to go about calling a function given a string with the function's name in a Python program. For example, let's say that I have a module foo , and I have a string whose content is "bar" . What is the best way to call foo.bar() ?
...
Django: How do I add arbitrary html attributes to input fields on a form?
... earlier to modify 3 fields: ``` for field_name in ['image', 'image_small', 'image_mobile']: field = self.fields.get(field_name) field.widget.attrs['data-file'] = 'file' ```
– Stuart Axon
Jun 6 '14 at 11:59
...
How do you produce a .d.ts “typings” definition file from an existing JavaScript library?
...initelyTyped/DefinitelyTyped) first. This is a community repo full of literally thousands of .d.ts files and it's very likely the thing you're using is already there.
You should also check TypeSearch (https://microsoft.github.io/TypeSearch/) which is a search engine for NPM-published .d.ts files; th...
How to find out what type of a Mat object is with Mat::type() in OpenCV
...";
r += (chans+'0');
return r;
}
If M is a var of type Mat you can call it like so:
string ty = type2str( M.type() );
printf("Matrix: %s %dx%d \n", ty.c_str(), M.cols, M.rows );
Will output data such as:
Matrix: 8UC3 640x480
Matrix: 64FC1 3x2
Its worth noting that there are also Matr...