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Makefile经典教程(入门必备) - C/C++ - 清泛网 - 专注C/C++及内核技术
...用Makefile时,有一些我们会经常使用,而且使用频率非常高的东西,比如,我们编译C/C++的源程序为中间目标文件(Unix下是[.o] 文件,Windows下是[.obj]文件)。本章讲述的就是一些在Makefile中的“隐含的”,早先约定了的,不需要...
Makefile经典教程(入门必备) - C/C++ - 清泛网移动版 - 专注C/C++及内核技术
...用Makefile时,有一些我们会经常使用,而且使用频率非常高的东西,比如,我们编译C/C++的源程序为中间目标文件(Unix下是[.o] 文件,Windows下是[.obj]文件)。本章讲述的就是一些在Makefile中的“隐含的”,早先约定了的,不需要...
In C/C++ what's the simplest way to reverse the order of bits in a byte?
...up table.
//Index 1==0b0001 => 0b1000
//Index 7==0b0111 => 0b1110
//etc
static unsigned char lookup[16] = {
0x0, 0x8, 0x4, 0xc, 0x2, 0xa, 0x6, 0xe,
0x1, 0x9, 0x5, 0xd, 0x3, 0xb, 0x7, 0xf, };
uint8_t reverse(uint8_t n) {
// Reverse the top and bottom nibble then swap them.
return (looku...
How to detect DIV's dimension changed?
...in: Uses a setTimeout checking all the time DOM layout props (clientHeight etc) where each check is very slow but needs to be checked often to have same functionality.
– Marc J. Schmidt
Sep 27 '16 at 14:01
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无社交不商业,Uber将边缘化BAT - 资讯 - 清泛网 - 专注C/C++及内核技术
...司,居然打败了如此强大的出租车公司。
这说明了一个问题:就是连接比拥有更加重要。
连接是一种关系,而你拥有的只是物质,也就是说,现在的世界,关系比物质更重要。
讲到这里,我们还没有真正了解互联网...
Any reason not to use '+' to concatenate two strings?
... matter of other Python implementations, such as pypy, jython, ironpython, etc...
– jsbueno
Apr 6 '12 at 13:50
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What is difference between monolithic and micro kernel?
...t and some popular Linux distros have a Hurd port (Debian/Hurd, Arch Hurd, etc).
– beatgammit
Feb 2 '13 at 3:18
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Scheduling recurring task in Android
...n is not currently running. For normal timing operations (ticks, timeouts, etc) it is easier and much more efficient to use Handler.
Timer
timer = new Timer();
timer.scheduleAtFixedRate(new TimerTask() {
synchronized public void run() {
\\ here your todo;
}
...
boost多索引容器multi_index_container实战 - C/C++ - 清泛网 - 专注C/C++及内核技术
...越多的同行们能快速高质量地解决实际项目中遇到的各种问题,在此将我将自己实战中实用boost的经验分享给大家,本人才疏学浅,如果有什么问题希望读者们能帮助指出,大家共同探讨^_^
本章介绍的主题是multi_index_container
注...
How can I check if a Perl array contains a particular value?
...grep, hash...
any: 0 wallclock secs ( 0.67 usr + 0.00 sys = 0.67 CPU) @ 149253.73/s (n=100000)
first: 1 wallclock secs ( 0.63 usr + 0.01 sys = 0.64 CPU) @ 156250.00/s (n=100000)
grep: 42 wallclock secs (41.95 usr + 0.08 sys = 42.03 CPU) @ 2379.25/s (n=100000)
hash: 0 ...
