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iOS / Android cross platform development [closed]
... However if I want to on start on an iOS version I need to code everything from scratch - which is, well, undesirable.
9 An...
Difference between “and” and && in Ruby?
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From Andrew Marshall's link: "Another way of thinking about and is as a reversed if statement modifier: next if widget = widgets.pop becomes widget = widgets.pop and next. That's a great way of putting it, really made it "cli...
Adding a directory to the PATH environment variable in Windows
...if it is started after this change and doesn't inherit the old environment from its parent.
You didn't specify how you started the console session. The best way to ensure this is to exit the command shell and run it again. It should then inherit the updated PATH environment variable.
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Multiple variables in a 'with' statement?
... docs at docs.python.org/library/contextlib.html#contextlib.nested differs from the standard nested with blocks. The managers are created in order before entering the with blocks: m1, m2, m3 = A(), B(), C() If B() or C() fails with exception, then your only hope of properly finalizing A() is the g...
Cast Double to Integer in Java
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Ok not to cast. I need to get Integer object from Double, not 13.22222 but 13, for example.
– 4lex1v
Feb 1 '12 at 19:57
183
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Creating a new empty branch for a new project
...sing a git repository to store our project. We have our branches departing from the original branch. But now we want to create a small new project to track some documentation. For that we would want to create a new empty branch to start storing our files, and I would want other users of the network ...
Can Python print a function definition?
...e of objects defined in the interpreter. If you use dill.source.getsource from dill, you can get the source of functions and lambdas, even if they are defined interactively.
It also can get the code for from bound or unbound class methods and functions defined in curries... however, you might not b...
How to debug a Flask app
...r=False), or point it at the venv/bin/flask script and use it as you would from the command line. You can leave the reloader disabled, but a reload will kill the debugging context and you will have to catch a breakpoint again.
You can also use pdb, pudb, or another terminal debugger by calling set_...
What are bitwise operators?
...hen dealing with different sizes of data. For example, reading an integer from four bytes:
int val = (A << 24) | (B << 16) | (C << 8) | D;
Assuming that A is the most-significant byte and D the least. It would end up as:
A = 01000000
B = 00000101
C = 00101011
D = 11100011
val...
What's the point of const pointers?
...t for some cases such as loop variables where const would prevent the code from working).
Note that this makes only sense in the definition of a function. It doesn’t belong in the declaration, which is what the user sees. And the user doesn’t care whether I use const for parameters inside the f...
