大约有 40,000 项符合查询结果（耗时：0.0538秒） [XML]
Abort makefile if variable not set
... :|check-defined-BAR
Notice that the check-defined-BAR is listed as the order-only (|...) prerequisite.
Pros:
(arguably) a more clean syntax
Cons:
One can't specify a custom error message
Running make -t (see Instead of Executing Recipes) will pollute your root directory with lots of check...
Simple proof that GUID is not unique [closed]
...On sale, $0.01 per 1k GUIDs. I'll throw in some bamboo wind chimes if you order in the next 60 minutes.
– ctacke
Nov 10 '09 at 5:31
7
...
Is there a way to cache GitHub credentials for pushing commits?
...ou need to copy the git-credential-netrc anywhere in your path ($PATH), in order for git to be able to call 'credential-netrc'.
– VonC
Dec 22 '13 at 0:14
...
Is Java “pass-by-reference” or “pass-by-value”?
...e get to the Java implementation:
Values go on and off the stack in a nice orderly fashion, like a stack of plates at a cafeteria.
Memory in the heap (also known as dynamic memory) is haphazard and disorganized. The JVM just finds space wherever it can, and frees it up as the variables that use it a...
How can I make a UITextField move up when the keyboard is present - on starting to edit?
...ke a viewing window on the content defined in the contentSize. So when in order for the UIScrollview to scroll anywhere, the contentSize must be greater than the UIScrollView. Else, there is no scrolling required as everything defined in the contentSize is already visible. BTW, default contentSiz...
Get the name of an object's type
...stanceof Boolean // false
The literals need to be wrapped in an Object in order for instanceof to work, for example
new Number(3) instanceof Number // true
The .constructor check works fine for literals because the . method invocation implicitly wraps the literals in their respective object type
3...
John Carmack's Unusual Fast Inverse Square Root (Quake III)
.....discarded...]
And the task has now came down to calculate a0 and a1 in order for y to have the least difference from the exact value. They have calculated that the most appropriate values are:
a0 = 0x5f375a86
a1 = -0.5
So when you put this into equation you get:
y = 0x5f375a86 - 0.5*x
Whic...
What is the difference between JDK dynamic proxy and CGLib?
...n does not implement an interface, in that case we uses inheritance:
In order to generate such proxies, Spring uses a third party library called CGLib.
CGLib (Code Generation Library) is built on top of ASM, this is mainly used the generate proxy extending bean and adds bean behavior in the p...
Are multiple `.gitignore`s frowned on?
...nce git 1.8.2 (March 2013) you can do a git check-ignore -v -- yourfile in order to see which gitignore run (from which .gitignore file) is applied to 'yourfile', and better understand why said file is ignored.
See "which gitignore rule is ignoring my file?"
...
Using bootstrap with bower
...
You have install nodeJs on your system in order to execute npm commands. Once npm is properly working you can visit bower.io. There you will find complete documentation on this topic. You will find a command $ npm install bower. this will install bower on your machin...