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Can I assume (bool)true == (int)1 for any C++ compiler?
...are redundant. In your expression:
true == 1
Integral promotion applies and the bool value will be promoted to an int and this promotion must yield 1.
Reference: 4.7 [conv.integral] / 4: If the source type is bool... true is converted to one.
...
How to center align the cells of a UICollectionView?
I am currently using UICollectionView for the user interface grid, and it works fine. However, I'd like to be enable horizontal scrolling. The grid supports 8 items per page and when the total number of items are, say 4, this is how the items should be arranged with horizontal scroll direction ena...
Why Choose Struct Over Class?
...n many circumstances.
Structs are preferable if they are relatively small and copiable because copying is way safer than having multiple references to the same instance as happens with classes. This is especially important when passing around a variable to many classes and/or in a multithreaded env...
Working copy XXX locked and cleanup failed in SVN
...as needed.
Commit
Another option would be to delete the top level folder and check out again. Hopefully it doesn't come to that though.
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What are the big improvements between guava and apache equivalent libraries?
...
First of, as javamonkey79 explained, while Google Guava and Apache Commons do share similar features, they also both have functionality that is absent from their counterpart. Thus, limiting yourself to only one library might be unwise.
That being said, if I had to choose, I'd opt...
How do cache lines work?
I understand that the processor brings data into the cache via cache lines, which - for instance, on my Atom processor - brings in about 64 bytes at a time, whatever the size of the actual data being read.
...
CodeIgniter removing index.php from url
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Try the following
Open config.php and do following replaces
$config['index_page'] = "index.php"
to
$config['index_page'] = ""
In some cases the default setting for uri_protocol does not work properly.
Just replace
$config['uri_protocol'] ="AUTO"
by...
How to set a Header field on POST a form?
...query (although you can do it with plain javascript) to serialize the form and send (using AJAX) while adding your custom header.
Look at the jquery serialize which changes an HTML FORM into form-url-encoded values ready for POST.
UPDATE
My suggestion is to include either
a hidden form elemen...
Python to print out status bar and percentage
...character (carriage return) resets the cursor to the beginning of the line and allows you to write over what was previously on the line.
from time import sleep
import sys
for i in range(21):
sys.stdout.write('\r')
# the exact output you're looking for:
sys.stdout.write("[%-20s] %d%%" %...
How can I list ALL grants a user received?
... It would be interesting to left join the role_role_privs table and then CONNECT BY PRIOR granted_role = role to recurse into transitive role privileges...
– Lukas Eder
Oct 9 '14 at 8:25
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