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How do you echo a 4-digit Unicode character in Bash?

...3 # Ceiling local p=128 # Accum. bits local s='' # Output string (( c < 0x80 )) && { fast_chr "$c"; echo -n "$REPLY"; return; } while (( c > o )); do fast_chr $(( t = 0x80 | c & 0x3f )) s="$REPLY$s" (( c >>= 6, l++, p += o+1,...
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How do I create a Java string from the contents of a file?

... Read all text from a file Java 11 added the readString() method to read small files as a String, preserving line terminators: String content = Files.readString(path, StandardCharsets.US_ASCII); For versions between Java 7 and 11, here's a compact, robust idiom, wrapped up...
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Pointers in C: when to use the ampersand and the asterisk?

... the pointer. But things work differently when you're working with arrays, strings or when you're calling functions with a pointer copy of a variable. It's difficult to see a pattern of logic inside all of this. ...
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String.Join method that ignores empty strings?

The VB.NET method String.Join(separator, stringArray) is similar to PHP's implode, but any null elements in the array are replaced with an empty string, so thatc: ...
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What is the max size of localStorage values?

Since localStorage (currently) only supports strings as values, and in order to do that the objects need to be stringified (stored as JSON-string) before they can be stored, is there a defined limitation regarding the length of the values. ...
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boost自定义composite_key_compare比较函数 - C/C++ - 清泛网 - 专注C/C++及内核技术

...DType,&TParam::ID> >, composite_key_compare< //std::less<std::string> customize_compare > >, ordered_non_unique< tag<TParamValidIndex>, member<TParam,bool,&TParam::IsValid> > > >TParamSet; typedef boost::multi_index::index<TParamSet,TParamIDIndex>::type TParamSetBy...
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How to avoid null checking in Java?

...dition&gt; is a boolean expression and &lt;object&gt; is an object whose toString() method's output will be included in the error. An assert statement throws an Error (AssertionError) if the condition is not true. By default, Java ignores assertions. You can enable assertions by passing the optio...
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How do you query for “is not null” in Mongo?

...roposition: db.collection_name.find({"field_name":{$type:2}}) //type:2 == String You can check on the required attribute's type, it will return all the documents that its field_name queried contains a value because you are checking on the filed's type else if it is null the type condition doesn't...
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Case insensitive XPath contains() possible?

...over all textnodes of my DOM and check if the nodeValue contains a certain string. 6 Answers ...
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Send Email Intent

....")); Update: According to marcwjj, it seems that on 4.3, we need to pass string array instead of a string for email address to make it work. We might need to add one more line: intent.putExtra(Intent.EXTRA_EMAIL, addresses); // String[] addresses Ref link ...