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How does Haskell printf work?
...ch can actually be formatted. That's where the second type class PrintfArg comes in. So the actual instance is
instance (PrintfArg x, PrintfType r) => PrintfType (x -> r)
Here's a simplified version which takes any number of arguments in the Show class and just prints them:
{-# LANGUAGE Fl...
GoTo Next Iteration in For Loop in java
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SQL Server Output Clause into a scalar variable
...value it is not always possible to know the values ahead of time(identity, computed columns). I understand there are many workaround. Still, you gave me the answer I was looking for. Thanks
– Benoittr
Apr 6 '11 at 20:56
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Python OpenCV2 (cv2) wrapper to get image size?
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Oh, come on. Instead of assuming that the image will be BGR or mono, just write generally - h, w = img.shape[:2], especially as the OP is not interested in the depth. (Neither was I). See my answer for more details.
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JVM option -Xss - What does it do exactly?
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@instantsetsuna: I think the more common use is probably to increase the default limit. (There's always a limit.) But yes, you're controlling the size of the stack, which controls how deep the stack can get.
– T.J. Crowder
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django admin - add custom form fields that are not part of the model
...forms.ModelForm):
extra_field = forms.CharField()
def save(self, commit=True):
extra_field = self.cleaned_data.get('extra_field', None)
# ...do something with extra_field here...
return super(YourModelForm, self).save(commit=commit)
class Meta:
model = ...
Sequence contains no matching element
...omatic in C#:
for (i = 0; i < _lstAcl.Documents.Count; i++)
Eliminate common subexpressions:
var target = _lstAcl.Documents[i];
// Now use target for the rest of the loop body
Where possible use foreach instead of for to start with:
foreach (var target in _lstAcl.Documents)
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git remote prune – didn't show as many pruned branches as I expected
...local branches (not tracking branches) are not touched by git remote prune command and should be removed manually.
Now, a real-world example for better understanding:
You have a remote repository with 2 branches: master and feature. Let's assume that you are working on both branches, so as a resul...
Resharper- Find all unused classes
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Unused classes/Methods are coming up under "Type or type member is never used" under "Redundancies in Symbol Declarations". Not sure if this is due to version change, or I am looking at it differently.
– bulltorious
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