...es. The general usage is push eax ; preserve the value of eax call some_method ; some method is called which will put return value in eax mov edx, eax ; move the return value to edx pop eax ; restore original eax A push is a single instruction in x86, which do...

...) = n. So in any factorization of n, at least one of the factors must be smaller than the square root of n, and if we can't find any factors less than or equal to the square root, n must be a prime. share | ...

...on Rails 3.1 pre version. I like to use PostgreSQL, but the problem is installing the pg gem. It gives me the following error: ...

...nd to write specific code to each platform in this regard. In other hands, all logic code, business rules, and things that can be shared we intend to write using C++, so we can compile the same code to each platform. In the diagram, you can see the C++ layer at the lowest level. All shared code is ...

...rwise, if ec2-user and root don't work, check with your AMI provider. Finally, be aware that there are many other reasons why authentication would fail. SSH is usually pretty explicit about what went wrong if you care to add the -v option to your SSH command and read the output, as explained in ma...

... @DavidGiven: See for example (by quick glance) all the other answers to this question. – tripleee Sep 11 '13 at 20:00 ...

I tend to declare as static all the methods in a class when that class doesn't require to keep track of internal states. For example, if I need to transform A into B and don't rely on some internal state C that may vary, I create a static transform. If there is an internal state C that I want to be ...

... { get { return this.runTimeParam; } } } Notice how this allows us to protect the class' invariants by use of the readonly keyword. No smelly Initialize methods are necessary. An IMyIntfFactory implementation may be as simple as this: public class MyIntfFactory : IMyIntfFactory {...

... here is an update after you have edited your original question. First of all, remember to use raw strings (prefix the string with 'r') when using path delimiters on Windows, to prevent accidentally hitting an escape character. Second, PIL's Image.open either accepts a filename, or a file-like (tha...

...sizeof(struct { int: -!!(e); })) (e): Compute expression e. !!(e): Logically negate twice: 0 if e == 0; otherwise 1. -!!(e): Numerically negate the expression from step 2: 0 if it was 0; otherwise -1. struct{int: -!!(0);} --> struct{int: 0;}: If it was zero, then we declare a struct with an an...