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“Debug certificate expired” error in Eclipse Android plugins
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There is now a bug tracker issue requesting this to be fixed. Please vote for it. code.google.com/p/android/issues/detail?id=15370
– Manfred Moser
Mar 9 '11 at 19:52
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Given a view, how do I get its viewController?
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I'm not sure if it would break MVC principles. At any one point, a view has only one view controller. Being able to get to it in order to pass a message back to it, should be an automatic feature, not one where you have to work to achie...
Multiple columns index when using the declarative ORM extension of sqlalchemy
...my.Column class, we should use the class sqlalchemy.schema.Index to specify an index that contains multiple columns.
2 A...
How to git-cherry-pick only changes to certain files?
...tively with git reset -p HEAD. It's the equivalent of add -p but very few know that it exists.
– Patrick Schlüter
Mar 14 '17 at 9:09
2
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How do I efficiently iterate over each entry in a Java Map?
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To summarize the other answers and combine them with what I know, I found 10 main ways to do this (see below). Also, I wrote some performance tests (see results below). For example, if we want to find the sum of all of the keys and values of a map, we can write:
Using iterator and Ma...
Is there a simple way to convert C++ enum to string?
...:ostream& operator<<(std::ostream& os, enum Colours c)
{
if (c >= ColoursCount || c < 0) return os << "???";
return os << colours_str[c];
}
int main()
{
std::cout << Red << Blue << Green << Cyan << Yellow << Magenta <...
Do try/catch blocks hurt performance when exceptions are not thrown?
... IL_001f: nop
IL_0020: nop
IL_0021: leave.s IL_002f //JUMP IF NO EXCEPTION
} // end .try
catch [mscorlib]System.Exception
{
IL_0023: stloc.0
IL_0024: nop
IL_0025: ldloc.0
IL_0026: call void [mscorlib]System.Console::WriteLine(object)
IL_002b: no...
Why can't I use a list as a dict key in python?
...ists Can't Be Dictionary Keys. As explained there:
What would go wrong if you tried to use lists as keys, with the hash as, say, their memory location?
It can be done without really breaking any of the requirements, but it leads to unexpected behavior. Lists are generally treated as if their v...
SQL Server Index Naming Conventions [closed]
...s/1401572/… KEY and INDEX are synonyms. So it should be no need to have different prefixes for unique keys and unique indexes?
– skjerdalas
Dec 17 '14 at 10:19
2
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Python integer division yields float
...142857142857
100//35 => 2
100.//35 => 2.0 # floating-point result if divsor or dividend real
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