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How can I check if a string represents an int, without using try/except?
...isdigit()
True
it won't work with '16.0' format, which is similar to int casting in this sense.
edit:
def check_int(s):
if s[0] in ('-', '+'):
return s[1:].isdigit()
return s.isdigit()
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byte[] to hex string [duplicate]
....Enumerable.WhereSelectArrayIterator<byte,string>} which String.Join cast to a String[].
– Aussie Craig
Mar 8 '09 at 6:17
5
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Is there a way to check if a file is in use?
...which is more typing. If you have a explicit interface you'd also have to cast. Finally you want to dispose ASAP, and the finally logic may have UI or any other long running actions that have little to do with calling IDispose. </rant>
– Spence
Nov 27 '...
Why are arrays of references illegal?
...lates).
this would probably work, if you don't mind this kind of nasty: recast '*this' as an array of int *'s and return a reference made from one: (not recommended, but it shows how the proper 'array' would work):
int & operator[]( int i ) { return *(reinterpret_cast<int**>(this)[i]); ...
Entity Framework: There is already an open DataReader associated with this Command
...ption can be thrown before second reader is executed). You can also try to cast the query to ObjectQuery and call ToTraceString to see the SQL command. It is hard to track. I always turn on MARS.
– Ladislav Mrnka
Feb 1 '11 at 22:27
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How to disable / enable dialog negative positive buttons?
...dd that dialog.getButton() only works for AlertDialogs, so you may have to cast the dialog to AlertDialog as you do farther down in the post.
– Noumenon
Aug 10 '13 at 18:13
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When NOT to use yield (return) [duplicate]
...the collection itself would allow the end user to modify it (with a proper cast), whereas the first method would not.
– Grx70
Jul 19 '15 at 9:04
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Should you choose the MONEY or DECIMAL(x,y) datatypes in SQL Server?
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"Never" is a strong word. "Money" is useful for casting results to that type for display to the user in a culture-sensitive way, but you're right that it's very bad to use for the calculations itself.
– Joel Coehoorn
Feb 24 '09 at 18:...
How do I force Postgres to use a particular index?
...s when datatypes don't match properly, you may need to include appropriate casts.
Your planner settings might be causing problems.
See also this old newsgroup post.
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C++ static virtual members?
...ely type-safe and doesn't contain any black magic like typeid's or dynamic_cast's :)
So, we want to provide only one definition of getTypeInformation() per derived class and it is obvious that it has to be a definition of static function because it is not possible to call "SomeDerivedClass::getType...