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What is the correct way of using C++11's range-based for?
... 3, 5, 7, 9};
for (auto x : v) // <-- capture by value (copy)
x *= 10; // <-- a local temporary copy ("x") is modified,
// *not* the original vector element.
for (auto x : v)
cout << x << ' ';
The output is just the initial sequence:
1 3 5 7...
SQL UPDATE all values in a field with appended string CONCAT not working
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answered Nov 8 '10 at 21:46
Marc BMarc B
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finding and replacing elements in a list
...1]
>>> for n, i in enumerate(a):
... if i == 1:
... a[n] = 10
...
>>> a
[10, 2, 3, 4, 5, 10, 2, 3, 4, 5, 10]
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Including a .js file within a .js file [duplicate]
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bluish
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answered Jan 27 '10 at 10:10
YOUYOU
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Aggregate function in an SQL update query?
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edited Jan 6 '10 at 1:06
answered Jan 5 '10 at 23:32
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How do I undo a checkout in git?
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edited Aug 31 '10 at 2:31
answered Aug 30 '10 at 15:41
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Selecting with complex criteria from pandas.DataFrame
...randint
>>> df = pd.DataFrame({'A': [randint(1, 9) for x in range(10)],
'B': [randint(1, 9)*10 for x in range(10)],
'C': [randint(1, 9)*100 for x in range(10)]})
>>> df
A B C
0 9 40 300
1 9 70 700
2 5 70 900
3 8 80 900
4 7 ...
Why java.lang.Object is not abstract? [duplicate]
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edited Jan 22 '10 at 21:26
answered Jan 22 '10 at 15:30
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One-line list comprehension: if-else variants
...ssion you're returning for each element. Thus you need:
[ x if x%2 else x*100 for x in range(1, 10) ]
The confusion arises from the fact you're using a filter in the first example, but not in the second. In the second example you're only mapping each value to another, using a ternary-operator exp...
Is it considered acceptable to not call Dispose() on a TPL Task object?
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There is a discussion about this in the MSDN forums.
Stephen Toub, a member of the Microsoft ...