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How to round a number to significant figures in Python
...Wow, your answer needs to be really read from top to bottom ;) This double-cast trick is dirty, but neat. (Note that 1999 formatted as 2000.0 suggests 5 significant digits, so it has to go through {:g} again.) In general, integers with trailing zeros are ambiguous with regard to significant figures,...
How to read and write excel file
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in fact, just remove the (short) cast poi.apache.org/apidocs/org/apache/poi/hssf/usermodel/…
– nicolallias
Dec 23 '14 at 14:18
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Is there a way to loop through a table variable in TSQL without using a cursor?
... UserIDs where USERID= @CustID --get other info from that row
print cast(@RowNum as char(12)) + ' ' + @CustId + ' ' + @Name1 --do whatever
select top 1 @CustId=USERID from UserIDs where USERID < @CustID order by USERID desc--get the next one
set @RowNum = @RowNum - 1 ...
Is if(items != null) superfluous before foreach(T item in items)?
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It is not superflous. At runtime items will be casted to an IEnumerable and its GetEnumerator method will be called. That will cause a dereferencing of items that will fail
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How to do a regular expression replace in MySQL?
...t and I don't know if you have a multibyte charset as your default: select cast( T.R as char) COLLATE utf8_unicode_ci from (select preg_replace('/ä/', '', 'öõüä') R ) T
– gillyspy
Feb 9 '14 at 19:46
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Zipping streams using JDK8 with lambda (java.util.stream.Streams.zip)
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Unless I'm missing something, there is no need for any cast (e.g. to Spliterator<A>).
– jub0bs
Aug 11 '16 at 14:41
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jQuery SVG, why can't I addClass?
...VGAnimatedString { baseVal="test svg", animVal="test svg"}
If we were to cast that SVGAnimatedString object to a string as jQuery does, we would have [object SVGAnimatedString], which is where jQuery fails.
How the jQuery SVG plugin handles this:
The jQuery SVG plugin works around this by patching...
How to implement onBackPressed() in Fragments?
...mixing safe calls (.?) and enforcing non-nulls (!!) can lead to NPEs - the cast is not always safe. I'd rather write if ((fragment as? IOnBackPressed)?.onBackPressed()?.not() == true) { ... } or more kotliney (fragment as? IOnBackPressed)?.onBackPressed()?.not()?.let { ... }
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Difference between 'new operator' and 'operator new'?
...own container, you can call operator new directly, like:
char *x = static_cast<char *>(operator new(100));
It's also possible to overload operator new either globally, or for a specific class. IIRC, the signature is:
void *operator new(size_t);
Of course, if you overload an operator new...
Is it safe to check floating point values for equality to 0?
...rns true
The problem is, programmer sometimes forgets that implicit type cast (double to float) is happening for the comparison and the it results into a bug.
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