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Are default enum values in C the same for all compilers?
...ng an enum as shown below, do all C compilers set the default values as x=0 , y=1 , and z=2 on both Linux and Windows systems?
...
Get the current year in JavaScript
...ily: sans-serif;
}
<footer>
&copy; <span id="year">2018</span> by FooBar
</footer>
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How can I programmatically get the MAC address of an iphone
...tIPAddresses();
GetHWAddresses();
int i;
NSString *deviceIP = nil;
for (i=0; i<MAXADDRS; ++i)
{
static unsigned long localHost = 0x7F000001; // 127.0.0.1
unsigned long theAddr;
theAddr = ip_addrs[i];
if (theAddr == 0) break;
if (theAddr == localHost) continue;
N...
Is it possible to set transparency in CSS3 box-shadow?
..., browser support for both box-shadow and rgba() is roughly the same.
/* 50% black box shadow */
box-shadow: 10px 10px 10px rgba(0, 0, 0, 0.5);
div {
width: 200px;
height: 50px;
line-height: 50px;
text-align: center;
color: white;
background-color: red;
marg...
SVG drop shadow using css3
...ow.
Relevant bits from the example:
<filter id="dropshadow" height="130%">
<feGaussianBlur in="SourceAlpha" stdDeviation="3"/> <!-- stdDeviation is how much to blur -->
<feOffset dx="2" dy="2" result="offsetblur"/> <!-- how much to offset -->
<feComponentTran...
编译器内部的秘密--微软的编译器是如何解析Try/Catch/Throw的 - C/C++ - 清...
...活。这行语句会变成对函数_CxxThrowException (函数来自MSVCR100.dll或其他类似版本的dll)的调用。 这个函数有编译器内部构建。你喜欢的话，你可以自己调用它。这个函数的第一个参数是指向抛出的异常对象的指针。 所以，上面的代...
What is :: (double colon) in Python when subscripting sequences?
...
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What's the syntax for mod in java
... can use the remainder operator %. For your exact example:
if ((a % 2) == 0)
{
isEven = true;
}
else
{
isEven = false;
}
This can be simplified to a one-liner:
isEven = (a % 2) == 0;
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第一个Hello,OS World操作系统 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...身也是程序，它的运行也是如此，开机后从指定地址处（0x7c00），开始执行指令。先看看本节例子最终运行效果：
编译运行环境：
nasm：Inter x86汇编编译工具，用户将我们的汇编代码编译为二进制。（下载地址）
Bochs：运...