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Getting “bytes.Buffer does not implement io.Writer” error message
...ootstrap [64]byte // memory to hold first slice; helps small buffers avoid allocation.
lastRead readOp // last read operation, so that Unread* can work correctly.
}
using passed by value, the passed new buffer struct is different from the origin buffer variable.
...
hash function for string
...e is roughly 2x the expected number of elements to be stored in the table. Allocating much more than that will make your hash table faster but at rapidly diminishing returns, making your hash table smaller than that will make it exponentially slower. This is because there is a non-linear trade-off b...
How can I return an empty IEnumerable?
...ore expensive operation because it would create an instance of a list (and allocate memory for it in the process)
– Igor Pashchuk
Jun 30 '11 at 20:14
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initializing a boolean array in java
...
The array will be initialized to false when you allocate it.
All arrays in Java are initialized to the default value for the type. This means that arrays of ints are initialised to 0, arrays of booleans are initialised to false and arrays of reference types are initialise...
Can you run GUI applications in a Docker container?
...
First, you need to check the port allocated (by doing docker inspect <container id> or simply docker ps, then you connect to your host's ip with the port you just found.
– creack
Jul 30 '13 at 0:54
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How to get current memory usage in android?
...Runtime.freeMemory() returns 0 and Runtime.totalMemory() returns currently allocated memory only.
– artem
May 4 at 21:03
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How to convert SecureString to System.String?
...valuePtr = IntPtr.Zero;
try {
valuePtr = Marshal.SecureStringToGlobalAllocUnicode(value);
return Marshal.PtrToStringUni(valuePtr);
} finally {
Marshal.ZeroFreeGlobalAllocUnicode(valuePtr);
}
}
If you want to avoid creating a managed string object, you can access the raw data usin...
Proper use of 'yield return'
... }
}
}
If you use List instead of yield, you will need to allocation 1 million objects to memory (~190mb) and this simple example will take ~1400ms to run. However, if you use yield, you don't need to put all these temp objects to memory and you will get significantly faster algori...
How do you copy the contents of an array to a std::vector in C++ without looping?
...ce() first on the two iterators to get the needed number of elements, then allocate just once.
– Drew Hall
Nov 4 '08 at 2:38
4
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iOS difference between isKindOfClass and isMemberOfClass
...se
@interface A : NSObject
@end
@interface B : A
@end
...
id b = [[B alloc] init];
then
[b isKindOfClass:[A class]] == YES;
[b isMemberOfClass:[A class]] == NO;
Basically, -isMemberOfClass: is true if the instance is exactly of the specified class, while -isKindOfClass: is true if the ins...