大约有 1,400 项符合查询结果（耗时：0.0104秒） [XML]
What does “#define _GNU_SOURCE” imply?
...bc versions before 2.10;
199506L in glibc versions before 2.5; 199309L in glibc ver‐
sions before 2.1) and _XOPEN_SOURCE with the value 700 (600
in glibc versions before 2.10; 500 in glibc versions before
2.2). In addition, vario...
What blocks Ruby, Python to get Javascript V8 speed? [closed]
...gine module together with Python generators and the yield statement (since 2.5!!! can redefine your asynchronous coding.
– Lukas Bünger
Oct 11 '13 at 1:10
...
Determining 32 vs 64 bit in C++
..., but was curious to know if people could think of cases where this might fail or if there is a better way to do this. Please note we are trying to do this in a cross-platform, multiple compiler environment.
...
How to optimize for-comprehensions and loops in Scala?
...
EDIT: (deleted)
EDIT OF EDIT: Former discrepancies between run times of 2.5s and 0.7s were entirely due to whether the 32-bit or 64-bit JVMs were being used. Scala from the command line uses whatever is set by JAVA_HOME, while Java uses 64-bit if available regardless. IDEs have their own settings...
What are the differences between type() and isinstance()?
...e and pervasive (in Python 2.6 and going forward) than they used to be (in 2.5 and before), and therefore, by contrast, make checking type equality an even worse practice in recent Python versions than it already used to be.
...
Regular expression to match DNS hostname or IP Address?
...
Here: stackoverflow.com/questions/4645126/… - I explain that names that start with a digit are considered as valid as well. Also, only one dot is questionable issue. Would be great to have more feedback on that.
– BreakPhreak
Jan 10 '11 a...
What is the most efficient string concatenation method in python?
...
It depends on what you're doing.
After Python 2.5, string concatenation with the + operator is pretty fast. If you're just concatenating a couple of values, using the + operator works best:
>>> x = timeit.Timer(stmt="'a' + 'b'")
>>> x.timeit()
0.039999...
What's is the difference between include and extend in use case diagram?
...r here in stack overflow :).
These are the technical definitions from UML 2.5 pages 671-672.
I highlighted what I think are important points.
Extends
An Extend is a relationship from an extending UseCase (the extension) to an extended UseCase (the extendedCase) that specifies
how and when the be...
What is the difference between __dirname and ./ in node.js?
...change the accepted answer. Please keep in mind that this answer was added 2.5 years after the original one was accepted, and I only just noticed it now (another 2 years later). :) Better late than never!
– thisissami
Apr 30 '15 at 17:19
...
Color in git-log
... the color after printing the "prefix" in its own color.
Note that git 2.5 (Q2 2015) fixes a bug:
See commit 429ad20 by Junio C Hamano (gitster), 13 May 2015.
(Merged by Junio C Hamano -- gitster -- in commit fd70780, 22 May 2015)
log: do not shorten decoration names too early
The "log...