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TLSF源码及算法介绍 - 开源 & Github - 清泛网 - 专注C/C++及内核技术
... * - Add 64 bit support. It now runs on x86_64 and solaris64.
* - I also tested this on vxworks/32and solaris/32 and i386/32 processors.
* - Remove assembly code. I could not measure any performance difference
* on my core2 processor. This also makes the code more portable.
* - Moved defi...
Why does this loop produce “warning: iteration 3u invokes undefined behavior” and output more than 4
... $4, %esp
movl -12(%eax), %eax
movl 124(%esi,%eax), %ebx
testl %ebx, %ebx
je L15
cmpb $0, 28(%ebx)
je L5
movsbl 39(%ebx), %eax
L6:
movl %esi, %ecx
movl %eax, (%esp)
addl $1000000000, %edi
call __ZNSo3putEc
subl $4, %esp
...
Minimum and maximum value of z-index?
...
My tests show that z-index: 2147483647 is the maximum value, tested on FF 3.0.1 for OS X.
I discovered a integer overflow bug: if you type z-index: 2147483648 (which is 2147483647 + 1) the element just goes behind all other elem...
Java ArrayList copy
...ws:
ArrayList<String> src = new ArrayList<String>();
src.add("test string1");
src.add("test string2");
ArrayList<String> dest= new ArrayList<String>();
dest.addAll(src);
This is actual copying of values and not just copying of reference.
...
Is there a 'foreach' function in Python 3?
...
This does the foreach in python 3
test = [0,1,2,3,4,5,6,7,8,"test"]
for fetch in test:
print(fetch)
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...
how to listen to N channels? (dynamic select statement)
...nformation before forwarding it to the aggregate channel.
In my (limited) testing, this method greatly out performs using the reflect package:
$ go test dynamic_select_test.go -test.bench=.
...
BenchmarkReflectSelect 1 5265109013 ns/op
BenchmarkGoSelect 20 81911344 ns/o...
How to link to apps on the app store
...
This should be tested on a real device.
– Protocole
Feb 7 '12 at 9:31
7
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How to read and write INI file with Python3?
...
Here's a complete read, update and write example.
Input file, test.ini
[section_a]
string_val = hello
bool_val = false
int_val = 11
pi_val = 3.14
Working code.
try:
from configparser import ConfigParser
except ImportError:
from ConfigParser import ConfigParser # ver. < 3...
How to put a label on an issue in GitHub if you are not a contributor / owner?
...till potentially reserving other labels for collaborators only.
Here is a test repo of mine that you can freely create issues on to test it out: https://github.com/cirosantilli/test-git-web-interface/issues/new
The templates can be created from GitHub's repo Settings tab, but even if you do it fro...
With MySQL, how can I generate a column containing the record index in a table?
...ows the variable initialization without requiring a separate SET command.
Test case:
CREATE TABLE league_girl (position int, username varchar(10), score int);
INSERT INTO league_girl VALUES (1, 'a', 10);
INSERT INTO league_girl VALUES (2, 'b', 25);
INSERT INTO league_girl VALUES (3, 'c', 75);
INSE...