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Difference between shared objects (.so), static libraries (.a), and DLL's (.so)?
...r has to find the function bodies somewhere at link time or it'll raise an error. It ALSO does that at runtime, because as you rightly point out the library itself might have changed since the program was compiled. This is why ABI stability is so important in platform libraries, as the ABI changing ...
How can I access and process nested objects, arrays or JSON?
... using bracket notation:
const value = arr[5]; // arr.5 would be a syntax error
// property name / index as variable
const x = 5;
const value = arr[x];
Wait... what about JSON?
JSON is a textual representation of data, just like XML, YAML, CSV, and others. To work with such data, it first has t...
How do you sign a Certificate Signing Request with your Certification Authority?
...ivate key:
Sign the certificate? [y/n]:Y
failed to update database
TXT_DB error number 2
So unique_subject = no is perfect for testing.
If you want to ensure the Organizational Name is consistent between self-signed CAs, Subordinate CA and End-Entity certificates, then add the following to you...
@property retain, assign, copy, nonatomic in Objective-C
...elya - No. If you release while using ARC, I believe you'll get a compiler error.
– Blamdarot
Dec 28 '12 at 19:22
54
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Hosting a Maven repository on github
... maven repository.
Edit: to avoid the problem mentioned in the comments ('Error creating commit: Invalid request. For 'properties/name', nil is not a string.'), make sure you state a name in your profile on github.
share
...
Writing your own STL Container
... This is interesting. How does your tester work? There are several parse errors, which are trivial (missing ';') but not sure how that verify destructor works. Oh, you meant assert(tester::livecount == 0);. Mmmmm, still not sure how this tester framework works. Could you give an example?
...
Understanding typedefs for function pointers in C
...to 'signal()' set the handler to SIG_IGN and signal() returns the previous error handler, the value of old after the if statement must be SIG_IGN - hence the assertion. (Well, it could be SIG_ERR if something went dramatically wrong - but then I'd learn about that from the assert firing.)
The progr...
How do iOS Push Notifications work?
...nformation about the HTTP/2 request format, and the possible responses and errors from APNs, see Communicating with APNs.
Send the HTTP/2 request to APNs, including cryptographic credentials in the form of a token or a certificate, over a persistent, secure channel.
Establishing this secure channel ...
Tags for Emacs: Relationship between etags, ebrowse, cscope, GNU Global and exuberant ctags
...r modes is based simply on regular expressions and that's very fragile and error prone. Hopefully with the inclusion of semantic in Emacs 23.2 (it used to be an external package before that) we'll start seeing more uses for it (like using it to analyse a buffer source code to properly highlight it)
...
I need to securely store a username and password in Python, what are my options?
...) as f:
passphrase = f.read()
if len(passphrase) == 0: raise IOError
except IOError:
with open(PASSPHRASE_FILE, 'w') as f:
passphrase = os.urandom(PASSPHRASE_SIZE) # Random passphrase
f.write(base64.b64encode(passphrase))
try: os.remove(SECRETSDB_FILE) # If t...