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How to open, read, and write from serial port in C?
... serial device converter driver. When I plug it in, it creates: /dev/ttyUSB1.
2 Answers
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Difference between >>> and >>
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421
>> is arithmetic shift right, >>> is logical shift right.
In an arithmetic shift...
How to determine the first and last iteration in a foreach loop?
...s $item) {
if ($i == 0) {
// first
} else if ($i == $len - 1) {
// last
}
// …
$i++;
}
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How do I log ALL exceptions globally for a C# MVC4 WebAPI app?
...tpStatusCode.Unauthorized:
Response.Redirect("/Http/Error401");
break;
// TODO: don't forget that here you have many other status codes to test
// and handle in addition to 401.
}
else
{
// It was not an Ht...
What is the Scala identifier “implicitly”?
... a type with selection defined, or equivalent implicit methods.
scala> 1.min(2) // Int doesn't have min defined, where did that come from?
res21: Int = 1
scala> implicitly[Int => { def min(i: Int): Any }]
res22: (Int) => AnyRef{def min(i: Int): Any} =...
理解和配置 Linux 下的 OOM Killer - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...B, anon-rss:3744kB, file-rss:80kB
httpd invoked oom-killer: gfp_mask=0x201da, order=0, oom_adj=0, oom_score_adj=0
httpd cpuset=/ mems_allowed=0
Pid: 8911, comm: httpd Not tainted 2.6.32-279.1.1.el6.i686 #1
...
21556 total pagecache pages
21049 pages in swap cache
Swap cache stats: add ...
Overload constructor for Scala's Case Classes?
...
190
Overloading constructors isn't special for case classes:
case class Foo(bar: Int, baz: Int) {...
if arguments is equal to this string, define a variable like this string
...
Don't forget about spaces:
source=""
samples=("")
if [ $1 = "country" ]; then
source="country"
samples="US Canada Mexico..."
else
echo "try again"
fi
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How to find nth occurrence of character in a string?
...
17 Answers
17
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How do I create directory if none exists using File class in Ruby?
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154
You can use FileUtils to recursively create parent directories, if they are not already presen...