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What is the difference between vmalloc and kmalloc?
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What are the advantages of having a contiguous block of memory? Specifically, why would I need to have a contiguous physical block of memory in a system call ? Is there any reason I couldn't just use vmalloc ?
Finally, if I were to allocate memory during the handling of a system call, shou...
UITableView didSelectRowAtIndexPath: not being called on first tap
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@Dschee it's not called on the first tap because you are not deselecting anything. Once you selected one row, when you try to select a second one, the first gets deselected.
– The dude
Sep 4 '14 at 13:30...
Attempt to present UIViewController on UIViewController whose view is not in the window hierarchy
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Where are you calling this method from? I had an issue where I was attempting to present a modal view controller within the viewDidLoad method. The solution for me was to move this call to the viewDidAppear: method.
My presumption is that...
How can I dynamically set the position of view in Android?
...p position of this view relative to its parent. This method is meant to be called by the layout system and should not generally be called otherwise, because the property may be changed at any time by the layout. - so maybe thats not that good an idea ;)
– katzenhut
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Passing by reference in C
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What we call for the method of calling the function that takes address of the variable instead of passing the pointer. Example: func1(int &a) . Is this not a call by reference? In this case reference is really taken and in case o...
Difference between onCreateView and onViewCreated in Fragment
...sure that view is fully created.
onViewCreated android Documentation
Called immediately after onCreateView(android.view.LayoutInflater, android.view.ViewGroup, android.os.Bundle) has returned, but before any saved state has been restored in to the view. This gives subclasses a chance to initia...
List of ANSI color escape sequences
...osition of trying to remember what colours are what, I have a handy script called: ~/bin/ansi_colours:
#!/usr/bin/python
print "\\033[XXm"
for i in range(30,37+1):
print "\033[%dm%d\t\t\033[%dm%d" % (i,i,i+60,i+60);
print "\033[39m\\033[39m - Reset colour"
print "\\033[2K - Clear Line"
print ...
PostgreSQL: insert from another table
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Just supply literal values in the SELECT:
INSERT INTO TABLE1 (id, col_1, col_2, col_3)
SELECT id, 'data1', 'data2', 'data3'
FROM TABLE2
WHERE col_a = 'something';
A select list can contain any value expression:
But the expressions in the select list do not have to reference any co...
Why does ASP.NET webforms need the Runat=“Server” attribute?
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It continues:
If <runat=client> was required for all client-side tags, the parser would need to parse all tags and strip out the <runat=client> part.
He continues:
Currently,
If my guess is correct, the parser
simply ignores all text (tags or no
tags) unless it is a...
Breakpoint on property change
Firebug for Firefox has a nice feature, called "Break on property change", where I can mark any property of any object, and it will stop JavaScript execution right before the change.
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