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Is < faster than
...m -127 to 128 in a compact form in comparisons, but constants outside that range have to loaded using either a longer, slower encoding, or another instruction entirely. So a comparison like (a < -127) may not have a straightforward transformation.
– BeeOnRope
...
Importing from builtin library when module with same name exists
..._standard_module_symbols(name, local_module):
import imp
for i in range(0, 100):
random_name = 'random_name_%d' % (i,)
if random_name not in sys.modules:
break
else:
random_name = None
if random_name is None:
raise RuntimeError("Co...
Rebase a single Git commit
...
git rebase --onto master branch~1 branch
This says "rebase the range of commits between last-before-branch and branch (that is, XX commit) on the tip of master branch"
After this operation branch tip is moved on commit XX, so you want to set it back with
git checkout branch
git reset -...
How can I check if a string represents an int, without using try/except?
...digit()
def timeFunc(func, times):
t1 = time.time()
for n in range(times):
for v in testvals:
r = func(v)
t2 = time.time()
return t2 - t1
def testFuncs(funcs):
for func in funcs:
sys.stdout.write( "\t%s\t|" % func.__name__)
print()
for ...
Best way to select random rows PostgreSQL
...
What's the purpose of the range of values from generate_series(1,1100)?
– Awesome-o
Feb 24 '14 at 6:12
...
With CSS, use “…” for overflowed block of multi-lines
...to mention that we are usually implementing dotdotdot because of it's wide range of configuration and clean code - easy to modify. (Note, this is just personal point of view - which doesn't belong to answer.)
– Milan Jaros
Dec 10 '14 at 13:29
...
string sanitizer for filename
...rs_and_words
$name = str_replace(array_merge(
array_map('chr', range(0, 31)),
array('<', '>', ':', '"', '/', '\\', '|', '?', '*')
), '', $name);
// maximise filename length to 255 bytes http://serverfault.com/a/9548/44086
$ext = pathinfo($name, PATHINFO_EXTENSIO...
Where do I find the current C or C++ standard documents?
...ng also maintains generated HTML and PDF versions of the Networking TS and Ranges TS.
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What is the purpose of the “Prefer 32-bit” setting in Visual Studio and how does it actually work?
...rictions I know are about array/allocation sizes that are limited by Int32 range (about 2GB).
– Alexei Levenkov
Aug 22 '12 at 5:56
...
What does gcc's ffast-math actually do?
...finite-math-only, -fno-rounding-math, -fno-signaling-nans and -fcx-limited-range. This option causes the preprocessor macro FAST_MATH to be defined." and something from glibc, like (math.h near math_errhandling) "By default all functions support both errno and exception handling. In gcc's fast math ...