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Why create “Implicitly Unwrapped Optionals”, since that implies you know there's a value?
...often treated this way, though in its case it's still useful to mutate sometimes). Implicitly unwrapped optionals would clean up its code a good deal, with relatively low loss of safety (as long as the one guarantee held, it would be safe).
(Edit) To be clear though: regular optionals are nearly a...
What's the rationale for null terminated strings?
...oblems when treating them as a bunch of
bytes).
length is known at compile time for constant literal strings (sizeof). So why would
anyone want to store it in memory prepending it to actual data ?
in a way C is doing as (nearly) everyone else, strings are viewed as arrays of char. As array length is...
Replace all non Alpha Numeric characters, New Lines, and multiple White Space with one Space
...;
Each run consisted of 50 or more sample on each regex, and i run them 5 times on each browser.
Lets race our horses!
Results
Chrome Edge
Chars Pattern Ops/Sec Deviation Op/Sec Deviation
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.NET / C# - Convert char[] to string
... Compiler does it automatically as chars type is known on compile time.
– Semen Miroshnichenko
Aug 3 '17 at 15:15
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What is boilerplate code?
...
@KorayTugay Some times boilerplate is not easy to avoid. For example, you can avoid to repeat main function in your project by using only one and manage your whole project with it. In web development we could avoid the html5 template in each ...
How to use double or single brackets, parentheses, curly braces
... square brackets seem to evaluate quite a lot quicker than single ones.
$ time for ((i=0; i<10000000; i++)); do [[ "$i" = 1000 ]]; done
real 0m24.548s
user 0m24.337s
sys 0m0.036s
$ time for ((i=0; i<10000000; i++)); do [ "$i" = 1000 ]; done
real 0m33.478s
user 0m33.478s
sys 0m0....
How can I run an external command asynchronously from Python?
... polling like in the following:
from subprocess import Popen, PIPE
import time
running_procs = [
Popen(['/usr/bin/my_cmd', '-i %s' % path], stdout=PIPE, stderr=PIPE)
for path in '/tmp/file0 /tmp/file1 /tmp/file2'.split()]
while running_procs:
for proc in running_procs:
retcode...
LEN function not including trailing spaces in SQL Server
...ing a inconsistent method (in some case you divide its result by 2 and sometimes not) is a better option. Maybe is there a near to zero performance hit with my method though.
– Serge
Mar 25 '13 at 12:35
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How to disassemble one single function using objdump?
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The man page isn't definitive. For a long time it wasn't really maintained, but now I think it's generated from the main docs. Also "gdb --help" is more complete now too.
– Tom Tromey
Oct 18 '14 at 2:33
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How do I use regex in a SQLite query?
...sage. If a application-defined SQL function named "regexp" is added at run-time, that function will be called in order to implement the REGEXP operator. (sqlite.org/lang_expr.html#regexp)
– radicand
Jan 7 '12 at 0:49
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