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Identify if a string is a number
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edited Feb 14 at 13:37
Vadim Ovchinnikov
9,91644 gold badges3939 silver badges6969 bronze badges
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Does hosts file exist on the iPhone? How to change it? [closed]
...my Mac, I use the hosts file to change the dns to point to a local server within my local area network.
8 Answers
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Xcode Command /usr/bin/codesign failed with exit code 1 : errSecInternalComponent
...select Lock All Keychains.
Then go back to Xcode and clean and rebuild. It will prompt you for your password again to unlock the keychain.
After this, assuming you have no other compile issues, it will succeed!
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How can I ensure that a division of integers is always rounded up?
... blog in January 2013. Thanks for the great question!
Getting integer arithmetic correct is hard. As has been demonstrated amply thus far, the moment you try to do a "clever" trick, odds are good that you've made a mistake. And when a flaw is found, changing the code to fix the flaw without cons...
How to write iOS app purely in C
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Damn, it took me a while but I got it:
main.c:
#include <CoreFoundation/CoreFoundation.h>
#include <objc/runtime.h>
#include <objc/message.h>
// This is a hack. Because we are writing in C, we cannot out and i...
reformat in vim for a nice column layout
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If you're on some kind of UNIX (Linux, etc), you can cheat and filter it through the column(1) command.
:%!column -t
The above will parse on delimiters inside string literals which is wrong, so you will likely need pre-processing steps and specifying the delimiter for this file for example:
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Unable to start debugging because the object invoked has disconnected from its clients
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edited Apr 23 at 3:09
answered Oct 10 '14 at 6:29
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How to print without newline or space?
I'd like to do it in python . What I'd like to do in this example in c :
22 Answers
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Unique ways to use the Null Coalescing operator [closed]
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Well, first of all, it's much easier to chain than the standard ternary:
string anybody = parm1 ?? localDefault ?? globalDefault;
vs.
string anyboby = (parm1 != null) ? parm1
: ((localDefault != null) ? localDefault
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Understanding generators in Python
...cookbook at the moment and am currently looking at generators. I'm finding it hard to get my head round.
12 Answers
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