大约有 40,000 项符合查询结果（耗时：0.0507秒） [XML]
How do I detect unsigned integer multiply overflow?
...thing>;
int x = <something>;
if ((x > 0) && (a > INT_MAX - x)) /* `a + x` would overflow */;
if ((x < 0) && (a < INT_MIN - x)) /* `a + x` would underflow */;
// For subtraction
#include <limits.h>
int a = <something>;
int x = <something>;
if...
Should I use s and s inside my s?
...ates that the links inside this navigation block form a list of items
At http://w3c.github.io/html/sections.html#the-nav-element you can see that a nav element could also contain prose.
So yes, having a list inside a nav element does add meaning.
...
How to delete migration files in Rails 3
...estroys your table or columns.
Another great reference for migrations is: http://guides.rubyonrails.org/migrations.html
share
|
improve this answer
|
follow
|...
Find size of Git repository
...ize: git count-objects -vH (see answer by @VonC)
For different ideas of "complete size" you could use:
git bundle create tmp.bundle --all
du -sh tmp.bundle
Close (but not exact:)
git gc
du -sh .git/
With the latter, you would also be counting:
hooks
config (remotes, push branches, settings...
Find intersection of two nested lists?
...sublist's item and checks to see if it is in the source list c1.
The list comprehension is executed for each sublist in c2.
share
|
improve this answer
|
follow
...
The difference between fork(), vfork(), exec() and clone()
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
How do I get textual contents from BLOB in Oracle SQL
...(at most) of the text inside the blob, provided all the character sets are compatible (original CS of the text stored in the BLOB, CS of the database used for VARCHAR2) :
select utl_raw.cast_to_varchar2(dbms_lob.substr(BLOB_FIELD)) from TABLE_WITH_BLOB where ID = '<row id>';
...
How to select the nth row in a SQL database table?
...of doing it.
A really good site that talks about this and other things is http://troels.arvin.dk/db/rdbms/#select-limit.
Basically, PostgreSQL and MySQL supports the non-standard:
SELECT...
LIMIT y OFFSET x
Oracle, DB2 and MSSQL supports the standard windowing functions:
SELECT * FROM (
SEL...
Upgrade Node.js to the latest version on Mac OS
...
Go to http://nodejs.org and download and run the installer.
It works now - for me at least.
share
|
improve this answer
...
Load and execution sequence of a web page?
...t fired when all page components are loaded and ready. Read more about it: http://docs.jquery.com/Tutorials:Introducing_$(document).ready()
Edit - This portion elaborates more on the parallel or not part:
By default, and from my current understanding, browser usually runs each page on 3 ways: HTML p...