大约有 40,000 项符合查询结果（耗时：0.0722秒） [XML]
How do the likely/unlikely macros in the Linux kernel work and what is their benefit?
...de "stdio.h"
#include "time.h"
int main() {
/* Use time to prevent it from being optimized away. */
int i = !time(NULL);
if (i)
printf("%d\n", i);
puts("a");
return 0;
}
Compile and decompile with GCC 4.8.2 x86_64 Linux:
gcc -c -O3 -std=gnu11 main.c
objdump -dr main.o...
Redirect From Action Filter Attribute
...y on its base controller) that simply calls the protected RedirectToAction from System.Web.Mvc.Controller. Adding this method allows for a public call to your RedirectToAction from the filter.
public new RedirectToRouteResult RedirectToAction(string action, string controller)
{
return base.Red...
What are the calling conventions for UNIX & Linux system calls (and user-space functions) on i386 an
...ding EFLAGS) are preserved across the int $0x80.
I took following snippet from the Linux Assembly Tutorial but I'm doubtful about this. If any one can show an example, it would be great.
If there are more than six arguments,
%ebx must contain the memory
location where the list of arguments
...
List directory tree structure in python?
...nswers above, but for python3, arguably readable and arguably extensible:
from pathlib import Path
class DisplayablePath(object):
display_filename_prefix_middle = '├──'
display_filename_prefix_last = '└──'
display_parent_prefix_middle = ' '
display_parent_prefix_last...
Correct way to load a Nib for a UIView subclass
... nil;
NSArray* elements = [[NSBundle mainBundle] loadNibNamed: NSStringFromClass([self class]) owner:self options: nil];
for (id anObject in elements)
{
if ([anObject isKindOfClass:[self class]])
{
result = anObject;
break;
}
}
retu...
What is the Difference Between read() and recv() , and Between send() and write()?
...owledge about how IP stacks work in kernels and not visible to the caller. From caller perspective, they will still provide equal behavior.
– Mecki
Jul 19 '17 at 16:51
2
...
Why is __dirname not defined in node REPL?
From the node manual I see that I can get the directory of a file with __dirname , but from the REPL this seems to be undefined. Is this a misunderstanding on my side or where is the error?
...
In Markdown, what is the best way to link to a fragment of a page, i.e. #some_id?
...
I guess this depends on what you're using to generate html from your markdown. I noticed, that jekyll (it's used by gihub.io pages by default) automatically adds the id="" attribute to headings in the html it generates.
For example if you're markdown is
My header
---------
The re...
How do I install Maven with Yum?
...et statement above.
Afterwards the process is easy
Run the wget command from the dir you want to extract maven too.
run the following to extract the tar,
tar xvf apache-maven-3.0.5-bin.tar.gz
move maven to /usr/local/apache-maven
mv apache-maven-3.0.5 /usr/local/apache-maven
Next add the en...
When should we use intern method of String on String literals
...ing to String#intern() , intern method is supposed to return the String from the String pool if the String is found in String pool, otherwise a new string object will be added in String pool and the reference of this String is returned.
...