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How to get the Android device's primary e-mail address
...this);
}
@Override
public Loader<Cursor> onCreateLoader(int id, Bundle arguments) {
return new CursorLoader(this,
// Retrieve data rows for the device user's 'profile' contact.
Uri.withAppendedPath(
ContactsContract.P...
What and where are the stack and heap?
... the CPU. This exceptional condition can then be caught by the runtime and converted into some kind of stack overflow exception.
Can a function be allocated on the heap instead of a stack?
No, activation records for functions (i.e. local or automatic variables) are allocated on the stack th...
How to crop an image using C#?
... @KvanTTT, both of them are pretty slow if you want to crop a big image into smaller ones.
– JBeurer
Feb 1 '13 at 7:20
1
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How to change time in DateTime?
...
@ZacharyYates: Yes, although I'd argue that at that point your model is broken to start with, and time shouldn't be a DateTime. (I'd use Noda Time of course, but...)
– Jon Skeet
Apr 23 '13 at 20:13
...
Is there a performance difference between i++ and ++i in C?
... code for this function,
both with ++i and i++.
$ cat i++.c
extern void g(int i);
void f()
{
int i;
for (i = 0; i < 100; i++)
g(i);
}
The files are the same, except for ++i and i++:
$ diff i++.c ++i.c
6c6
< for (i = 0; i < 100; i++)
---
> for (i = 0; i < ...
Is there any overhead to declaring a variable within a loop? (C++)
... for local variables is usually allocated in function scope. So no stack pointer adjustment happens inside the loop, just assigning 4 to var. Therefore these two snippets have the same overhead.
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Why doesn't delete set the pointer to NULL?
I always wondered why automatic setting of the pointer to NULL after delete is not part of the standard. If this gets taken care of then many of the crashes due to an invalid pointer would not occur. But having said that I can think of couple of reasons why the standard would have restricted this:...
Android: ScrollView force to bottom
...lastChild = scrollLayout.getChildAt(scrollLayout.getChildCount() - 1);
int bottom = lastChild.getBottom() + scrollLayout.getPaddingBottom();
int sy = scrollLayout.getScrollY();
int sh = scrollLayout.getHeight();
int delta = bottom - (sy + sh);
scrollLayout.smoothScrollBy(0, delt...
no new variables on left side of :=
...ent as you are assigning a new value to existing variable.
myArray = [...]int{11,12,14}
colon : is used when you perform the short declaration and assignment for the first time as you are doing in your first statement i.e. myArray :=[...]int{12,14,26}.
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How do I get the row count of a pandas DataFrame?
...s @Dan Allen noted in the comments len(df.index) and df[0].count() are not interchangeable as count excludes NaNs,
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