大约有 8,000 项符合查询结果（耗时：0.0209秒） [XML]
2026年1月4日签到记录贴 - 签到区 - 清泛IT社区，为创新赋能！
本贴是论坛每日签到系统在每天的第一位签到者签到时所自动生成的,如果您还未签到,请点此进行签到的操作. 我在 2026-01-04 06:42 完成签到,是今天第一个签到的用户,获得随机奖励 小红花 8,另外我还额外获得了 小红花 10.我今天最...
How to check if a number is a power of 2
...
chqrlie
86.6k1010 gold badges7777 silver badges136136 bronze badges
answered Mar 1 '09 at 20:52
Michael BurrM...
How does C compute sin() and other math functions?
...011, this is the code that actually runs when you call sin() on a typical x86-64 Linux system. It is apparently faster than the fsin assembly instruction. Source code: sysdeps/ieee754/dbl-64/s_sin.c, look for __sin (double x).
This code is very complex. No one software algorithm is as fast as possi...
What are the best JVM settings for Eclipse? [closed]
...t into
(eclipse_home)/plugins/org.eclipse.equinox.launcher.win32.win32.x86_1.1.0.v20100503
That's it. No setting to tweak here (again, only for Helios on Windows with a 6u21 pre build 7).
For non-Windows platform, you need to revert to the Sun proprietary option -XX:MaxPermSize.
The issue is b...
Go > operators
... some extra work when the shift count is a number.
Shift instructions in x86 CPUs consider only 5 bits (6 bits on 64-bit x86 CPUs) of the shift count. In languages like C/C++, the shift operator translates into a single CPU instruction.
The following Go code
x := 10
y := uint(1025) // A big shif...
libcurl的使用总结 - C/C++ - 清泛网 - 专注C/C++及内核技术
...得不借助libcurl这个库，由于第一次用，所以很多地方很是纠结，特此写在这里，方便给同...最近的项目中由于要在C++代码中调用PHP的URL，所以不得不借助libcurl这个库，由于第一次用，所以很多地方很是纠结，特此写在这里，方...
社交应用组件 · App Inventor 2 中文网
...
其他属性影响按钮外观（文本对齐、背景颜色等）以及是否可以单击（启用）。
联系人选择框组件可能不适用于所有手机。例如，在3.0之前的Android系统上，它无法选择电话号码，并且电子邮件地址列表将仅包含一封电子邮件...
Disabling Chrome cache for website development
...a-cache-size=1 –disk-cache-size=1 — "%1"
Example: "C:\Program Files (x86)\Google\Chrome\Application\chrome.exe" -disable-application-cache –media-cache-size=1 –disk-cache-size=1 — "%1"
IMPORTANT:
there is a space and a hyphen after ...chrome.exe"
leave the path to chrome.exe as it is...
String literals: Where do they go?
...tents of the array, the behavior is undefined.
Where do they go?
GCC 4.8 x86-64 ELF Ubuntu 14.04:
char s[]: stack
char *s:
.rodata section of the object file
the same segment where the .text section of the object file gets dumped, which has Read and Exec permissions, but not Write
Program:
#in...
Nginx与Lua - 更多技术 - 清泛网 - 专注C/C++及内核技术
...录：天下武功，无坚不破，唯快不破！Nginx的看家本领就是速度，Lua的拿手好戏亦是速度，这两者的结合在速度上无疑有基因上的优势...火云邪神语录：天下武功，无坚不破，唯快不破！Nginx的看家本领就是速度，Lua的拿手好戏...