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What is a loop invariant?
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@Tomas Petricek - when the loop terminates, i = 10 and j = -1; so the weaker invariant example you gave may not be correct (?)
– Raja
Apr 7 '12 at 22:47
7
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Fast way of finding lines in one file that are not in another?
...t if they have different line endings. The command dos2unix can be used to convert the CRLF line endings to LF only.
– ZeroOne
Mar 27 at 10:30
add a comment
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Selecting pandas column by location
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The method .transpose() converts columns to rows and rows to column, hence you could even write
df.transpose().ix[3]
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improve this answer
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Right query to get the current number of connections in a PostgreSQL DB
...ed Mar 11 '11 at 8:52
Magnus HaganderMagnus Hagander
19.6k33 gold badges4848 silver badges4141 bronze badges
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Authorize Attribute with Multiple Roles
...in @Tieson
I tweak a little in his answer. Instead of string.Join why not convert it to list?
Here is my answer:
public class AuthorizeRolesAttribute : AuthorizeAttribute
{
private new List<string> Roles;
public AuthorizeRolesAttribute(params string[] roles) : base()
{
R...
How to find memory leak in a C++ code/project?
...nstructions
Things You'll Need
Proficiency in C++
C++ compiler
Debugger and other investigative software tools
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Understand the operator basics. The C++ operator new allocates heap memory. The delete operator frees heap memory. For every new, you should use a delete so that you free the same m...
How to create a colored 1x1 UIImage on the iPhone dynamically?
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You can use CGContextSetFillColorWithColor and CGContextFillRect for this:
Swift
extension UIImage {
class func image(with color: UIColor) -> UIImage {
let rect = CGRectMake(0.0, 0.0, 1.0, 1.0)
UIGraphicsBeginImageContext(rect.size)
le...
Hibernate Annotations - Which is better, field or property access?
...";
}
}
Besides, if you throw another libs into the mix (like some JSON-converting lib or BeanMapper or Dozer or other bean mapping/cloning lib based on getter/setter properties) you'll have the guarantee that the lib is in sync with the persistence manager (both use the getter/setter).
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What is the difference between ndarray and array in numpy?
What is the difference between ndarray and array in Numpy? And where can I find the implementations in the numpy source code?
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How to extract public key using OpenSSL?
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and if you need to convert this format to ssh-rsa AAAAB3NzaC1y.... run : ssh-keygen -f PublicKey.pub -i -mPKCS8
– Rafael Milewski
May 18 '18 at 4:46
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