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What is the purpose of static keyword in array parameter of function like “char s[static 10]”?
...or example, it also means that someArray is never NULL.
Note that the C Standard does not require the compiler to diagnose when a call to the function does not meet these requirements (i.e., it is silent undefined behaviour).
The second declaration simply declares someArray (not someArray's elemen...
How to check if an NSDictionary or NSMutableDictionary contains a key?
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And what if the key does exist, but it's corresponding value is nil?
– Fyodor Soikin
May 6 '10 at 21:30
2...
How do I catch a PHP fatal (`E_ERROR`) error?
I can use set_error_handler() to catch most PHP errors, but it doesn't work for fatal ( E_ERROR ) errors, such as calling a function that doesn't exist. Is there another way to catch these errors?
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Using Mockito's generic “any()” method
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Since Java 8 you can use the argument-less any method and the type argument will get inferred by the compiler:
verify(bar).doStuff(any());
Explanation
The new thing in Java 8 is that the target type of an expression will be used to infer type parameters of its sub-expressi...
Shall we always use [unowned self] inside closure in Swift
In WWDC 2014 session 403 Intermediate Swift and transcript , there was the following slide
9 Answers
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PHP substring extraction. Get the string before the first '/' or the whole string
...me/cat1/subcat2/';
$first = strtok($mystring, '/');
echo $first; // home
and
$mystring = 'home';
$first = strtok($mystring, '/');
echo $first; // home
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Git: How to update/checkout a single file from remote origin master?
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Super handy, this worked great. I needed to get a composer.json file and run an update before I updated the rest of the site in production. If I had manually put the composer.json/lock files in place, when I did a pull, it would c...
MySql : Grant read only options?
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If there is any single privilege that stands for ALL READ operations on database.
It depends on how you define "all read."
"Reading" from tables and views is the SELECT privilege. If that's what you mean by "all read" then yes:
GRANT SELECT ON *.* TO 'username'...
Compare integer in bash, unary operator expected
...at variable substitutions are done, the shell proceeds with the comparison and.... fails because it cannot see anything intelligible to the left of -gt. However, quoting $i:
if [ "$i" -ge 2 ] ; then ...
becomes:
if [ " " -ge 2 ] ; then ...
The shell now sees the double-quotes, and knows th...
Display number with leading zeros
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In Python 2 (and Python 3) you can do:
print "%02d" % (1,)
Basically % is like printf or sprintf (see docs).
For Python 3.+, the same behavior can also be achieved with format:
print("{:02d}".format(1))
For Python 3.6+ the same...