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STL or Qt containers?
...concerns. Consider what happens if you store everything in a stl container then you have to pass all that data over to a Qt function. Do you really want to manage a bunch of code that copies things into/out-of Qt containers. Your code is already heavily dependent on Qt, so its not like you're making...
How do I do a not equal in Django queryset filtering?
...params + rhs_params
return '%s <> %s' % (lhs, rhs), params
Then you need to register it:
from django.db.models.fields import Field
Field.register_lookup(NotEqual)
And now you can use the __ne lookup in your queries like this:
results = Model.objects.exclude(a=True, x__ne=5)
...
PDO mysql: How to know if insert was successful
...y key, and if you have a certain scenario to handle this particular error, then use a try..catch operator.
For a regular PHP user it sounds a bit alien - how's that, not to verify the direct result of the operation? - but this is exactly how exceptions work - you check the error somewhere else. O...
How to output in CLI during execution of PHP Unit tests?
...
If it were intentional, then surely the manual would not give an example of it? Also, not trying to test the output itself. Just using it to eyeball some results causing tests to fail when they shouldn't.
– Jess Telford
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What is /dev/null 2>&1?
....)
2>&1 redirects standard error (2) to standard output (1), which then discards it as well since standard output has already been redirected.
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How to avoid annoying error “declared and not used”
...but would it be better if we can close a check why testing on our code and then open this check again after we want to finish the code and make it clean?
– A-letubby
Feb 13 '14 at 5:06
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.NET - How can you split a “caps” delimited string into an array?
...urce text should be capitalised the same way that it is in normal English, then other letters shouldn't be capitalised either. For example, why should the "i" in "is" be capitalised to fit the caps-delimited format but not the "NZAC" in "ANZAC"? Strictly speaking, if you interpret "ANZAC" as caps-de...
How do I remove files saying “old mode 100755 new mode 100644” from unstaged changes in Git?
...do so it doesn't work (or at least not in a way that it can read). When it then reads back the status of those files it looks like the executable bit has been deliberately unset. Setting core.filemode to false tells git to ignore any executable bit changes on the filesystem so it won't view this as ...
How to find patterns across multiple lines using grep?
...d '1,5!d' : delete lines not between 1 and 5 (i.e. keep the lines between) then instead of a number, you can search for a line with /pattern/. See also the simpler one below: sed -n '/abc/,/efg/p' p is for print and the -n flag don't display all lines
– phil_w
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Circular dependency in Spring
... how circular dependencies are resolved. The beans are instantiated first, then injected into each other.
Consider this class:
package mypackage;
public class A {
public A() {
System.out.println("Creating instance of A");
}
private B b;
public void setB(B b) {
S...