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Is Java Regex Thread Safe?
...h of member variables including the text that is being matched, arrays for groups, a few indexes for maintain location and a few booleans for other state. This all points to a stateful Matcher that would not behave well if accessed by multiple Threads. So does the JavaDoc:
Instances of this c...
Exploitable PHP functions
...from filesystem
file_exists
file_get_contents
file
fileatime
filectime
filegroup
fileinode
filemtime
fileowner
fileperms
filesize
filetype
glob
is_dir
is_executable
is_file
is_link
is_readable
is_uploaded_file
is_writable
is_writeable
linkinfo
lstat
parse_ini_file
pathinfo
readfile
readlink
realpath...
Why doesn't GCC optimize a*a*a*a*a*a to (a*a*a)*(a*a*a)?
...
Because Floating Point Math is not Associative. The way you group the operands in floating point multiplication has an effect on the numerical accuracy of the answer.
As a result, most compilers are very conservative about reordering floating point calculations unless they can be sur...
In what areas might the use of F# be more appropriate than C#? [closed]
...nny comment Pavel! Didn't know that. I think that in some cases with large grouping blocks, I might actually prefer begin..end. ALSO: VsVim RULES!
– Dan Fitch
May 13 '10 at 21:54
...
What are the rules about using an underscore in a C++ identifier?
...removes (with #undef) any macro definition of an identifier in the first
group listed above, the behavior is undefined.
154) The list of reserved identifiers with external linkage includes errno, math_errhandling, setjmp, and va_end.
Other restrictions might apply. For example, the POSIX st...
Is mathematics necessary for programming? [closed]
...us on math, and those who went to school for physics or math), but in both groups they enjoyed numerical problems and learning about algorithms and math theory.
share
edited ...
What is NoSQL, how does it work, and what benefits does it provide? [closed]
...pecific problem. But where do we begin? Thankfully, NoSQL databases can be grouped into certain categories, which are suitable for different use-cases:
Document-oriented
Examples: MongoDB, CouchDB
Strengths: Heterogenous data, working object-oriented, agile development
Their advantage is that th...
Changing the background drawable of the searchview widget
...extField attribute is set, we investigate res/values/themes.xml. There's a group of attributes related to SearchView in default Theme:
<style name="Theme">
<!-- (...other attributes present here...) -->
<!-- SearchView attributes -->
<item name="searchDropdownBackg...
Facebook Graph API v2.0+ - /me/friends returns empty, or only friends who also use my application
...ong id = 0;
if (match.Success)
{
id = long.Parse(match.Groups["id"].Value);
}
users.Add(new FacebookUser
{
Name = link.Text,
Id = id
});
}
}
return users;
}
Prototype with implementation of this approach (using C#/WatiN) see https...
How many socket connections can a web server handle?
...idle time-out period will be. Allowing Keep Alive reduces the latency of a group of requests (eg a html page and its associated assets), but increases resource usage on the server.
– iheggie
Apr 6 '17 at 5:20
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