大约有 37,000 项符合查询结果（耗时：0.0521秒） [XML]
What are the relationships between Any, AnyVal, AnyRef, Object and how do they map when used in Java
...red a primitive in Java is descendant from AnyVal in Scala. Until Scala 2.10.0, AnyVal was sealed, and programmers were unable to extend it. It should be interesting to see what will happen with Scala on .Net, since interoperability alone calls for Scala to at least recognize user-defined "primitive...
How to prevent gcc optimizing some statements in C?
...ready...
unsigned char *pageptr = ...;
((unsigned char volatile *)pageptr)[0] = pageptr[0];
The volatile type qualifier instructs the compiler to be strict about memory stores and loads. One purpose of volatile is to let the compiler know that the memory access has side effects, and therefore mus...
Gradient of n colors ranging from color 1 and color 2
...friend here:
colfunc <- colorRampPalette(c("black", "white"))
colfunc(10)
# [1] "#000000" "#1C1C1C" "#383838" "#555555" "#717171" "#8D8D8D" "#AAAAAA"
# [8] "#C6C6C6" "#E2E2E2" "#FFFFFF"
And just to show it works:
plot(rep(1,10),col=colfunc(10),pch=19,cex=3)
...
Get current value of a setting in Vim
...
answered Jan 16 '10 at 17:28
JaredParJaredPar
648k133133 gold badges11601160 silver badges13951395 bronze badges
...
Ruby on Rails patterns - decorator vs presenter
...
104
A decorator is more of a "let's add some functionality to this entity". A presenter is more of ...
Loop through Map in Groovy?
...|
edited Sep 19 '17 at 13:07
answered Apr 5 '12 at 23:23
Ja...
What happens if i return before the end of using statement? Will the dispose be called?
...de:
using(MemoryStream ms = new MemoryStream())
{
//code
return 0;
}
effectively becomes:
MemoryStream ms = new MemoryStream();
try
{
// code
return 0;
}
finally
{
ms.Dispose();
}
So, because finally is guaranteed to execute after the try block has finished execution, reg...
RabbitMQ message size and types
...nt to read up on their performance measures:
http://www.rabbitmq.com/blog/2012/04/17/rabbitmq-performance-measurements-part-1/
http://www.rabbitmq.com/blog/2012/04/25/rabbitmq-performance-measurements-part-2/
Queues are pretty light weight, you will most likely be limited by the number of connection...
How to view revision history for Mercurial file?
...
hg log file
hg diff -r 10 -r 20 file
share
|
improve this answer
|
follow
|
...
How to include (source) R script in other scripts
... |
edited Sep 11 '15 at 8:03
Roman
1,79722 gold badges1515 silver badges3737 bronze badges
answered Jun ...