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Using -performSelector: vs. just calling the method
I'm still kind of new to Objective-C and I'm wondering what is the difference between the following two statements?
5 Answe...
How to detect orientation change?
I am using Swift and I want to be able to load a UIViewController when I rotate to landscape, can anyone point me in the right direction?
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Convert from ASCII string encoded in Hex to plain ASCII?
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codecs.decode("7061756c", "hex") works for Python 2 and Python 3. But it returns a bytes() string in Python 3. But that's reasonable for an ASCII string.
– Mark Evans
Aug 7 '15 at 8:46
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Do try/catch blocks hurt performance when exceptions are not thrown?
...mployee we came across a large section of code inside a try{} block. She and an IT representative suggested this can have effects on performance of the code. In fact, they suggested most of the code should be outside of try/catch blocks, and that only important sections should be checked. The Micr...
What is the LD_PRELOAD trick?
I came across a reference to it recently on proggit and (as of now) it is not explained.
9 Answers
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Enable the display of line numbers in Visual Studio
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If the "Line numbers" check box is checked and you still don't see the lines, uncheck the check box, click OK, the go back to Tools -> Options -> Text Editor -> All Languages, now check the "Line numbers" check box again and the lines should appear.
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Why does the C++ map type argument require an empty constructor when using []?
..., among other things, they should be default-constructible.
Without this (and others requirements) it would be needlessly hard to implement the various internal copy/move/swap/compare operations on the data structures with which STL containers are implemented.
Upon reference to the C++ Standard, ...
Query grants for a table in postgres
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would you run this directly from the sql pane or pg command line?
– Daniel L. VanDenBosch
Aug 25 '17 at 19:49
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How do I disable log messages from the Requests library?
...I found out how to configure requests's logging level, it's done via the standard logging module. I decided to configure it to not log messages unless they are at least warnings:
import logging
logging.getLogger("requests").setLevel(logging.WARNING)
If you wish to apply this setting for the urll...
How do you decompile a swf file [closed]
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this website is buggy now and doesnt show the code anymore, is there any other good one ?
– Osa
Sep 14 '12 at 12:34
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