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Java - get pixel array from image
....read(PerformanceTest.class.getResource("12000X12000.jpg"));
System.out.println("Testing convertTo2DUsingGetRGB:");
for (int i = 0; i < 10; i++) {
long startTime = System.nanoTime();
int[][] result = convertTo2DUsingGetRGB(hugeImage);
long endTime = System....
Is “argv[0] = name-of-executable” an accepted standard or just a common convention?
... The C standard is limited in what it can say because it doesn't know about 'execve()' etc. The POSIX standard (opengroup.org/onlinepubs/9699919799/functions/execve.html) has more to say - making it clear that what is in argv[0] is at the whim of the process the executes the 'execve()' (or relat...
Swift and mutating struct
...ssed by let, just like in C++. If you use immutable struct wisely, it will outperform refcounted classes.
Update
As @Joseph claimed this doesn't provide why, I am adding a little more.
Structs have two kind of methods. plain and mutating methods. Plain method implies immutable (or non-mutating). ...
How can I check whether a numpy array is empty or not?
...umpy, but is unfortunate that it is considered unpythonic for lists. Check out discussion for lists: stackoverflow.com/questions/53513/… It would be nice to use same pattern for numpy arrays and lists.
– eric
Jul 28 '19 at 16:41
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Git log to get commits only for a specific branch
...n (mybranch), it will compare the current branch instead.
As VonC pointed out, you are ALWAYS comparing your branch to another branch, so know your branches and then choose which one to compare to.
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Why does changing 0.1f to 0 slow down performance by 10x?
...al) numbers are kind of a hack to get some extra values very close to zero out of the floating point representation. Operations on denormalized floating-point can be tens to hundreds of times slower than on normalized floating-point. This is because many processors can't handle them directly and mus...
Sort a text file by line length including spaces
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It's worth pointing out that cat $@ is broken, too. You absolutely definitely want to quote it, like cat "$@"
– tripleee
Jul 18 '17 at 7:30
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Java associative-array
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This will throw NullPointerException if outer map does not contain map for entry 0. Isn't PHP more permissive with $arr[0]['name'] (I don't know this language at all)?
– Tomasz Nurkiewicz
Feb 25 '11 at 21:49
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When are C++ macros beneficial? [closed]
..._FILE__, __LINE__, etc:
#ifdef ( DEBUG )
#define M_DebugLog( msg ) std::cout << __FILE__ << ":" << __LINE__ << ": " << msg
#else
#define M_DebugLog( msg )
#endif
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Removing colors from output
I have some script that produces output with colors and I need to remove the ANSI codes.
13 Answers
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