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How to create a fixed-size array of objects
...st to initialize it empty, then I would put Sprites in the first 16 cells, and the last 16 cells (simulating an chess game).
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Passing references to pointers in C++
... reference to a pointer in C++. However, my attempts to do so are failing, and I have no idea why.
10 Answers
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Android Writing Logs to text File
I'm Trying to Write Logs to Custom Log.txt File on Android File using this code of Mine but then this method creates file but contains nothing. Basically I want to read previous contents of the file and then append my data with the existing content.
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How do you kill a Thread in Java?
...ecated Thread.stop(). It goes into detail about why this was a bad method and what should be done to safely stop threads in general.
The way they recommend is to use a shared variable as a flag which asks the background thread to stop. This variable can then be set by a different object request...
How to check if there exists a process with a given pid in Python?
...s? I'm getting a pid from a different source other than from os.getpid() and I need to check to see if a process with that pid doesn't exist on the machine.
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How exactly does the callstack work?
I'm trying to get a deeper understanding of how the low level operations of programming languages work and especially how they interact with the OS/CPU. I've probably read every answer in every stack/heap related thread here on Stack Overflow, and they are all brilliant. But there is still one thin...
Converting numpy dtypes to native python types
...)
pyval = val.item()
print(type(pyval)) # <class 'float'>
# and similar...
type(np.float64(0).item()) # <class 'float'>
type(np.uint32(0).item()) # <class 'long'>
type(np.int16(0).item()) # <class 'int'>
type(np.cfloat(0).item()) # <class 'complex'>
type(np...
Is it possible to modify variable in python that is in outer, but not global, scope?
...
For python 2, I usually just use a mutable object (like a list, or dict), and mutate the value instead of reassign.
example:
def foo():
a = []
def bar():
a.append(1)
bar()
bar()
print a
foo()
Outputs:
[1, 1]
...
How do I get jQuery to select elements with a . (period) in their ID?
Given the following classes and controller action method:
8 Answers
8
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Why is it Valid to Concatenate Null Strings but not to Call “null.ToString()”?
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The binary + operator performs string concatenation when one or both operands are of type string.
If an operand of string concatenation is null, an empty string is substituted. Otherwise, any non-string argument is converted to its string representation by invoking the virtual ToString method inhe...