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Java regex email
...s valid
The regex is taken from this post: Mail::RFC822::Address: regexp-based address validation. The results should coincide with online version.
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Print an integer in binary format in Java
...ng uses two's complement output, toString coverts the number the specified base and puts a negative sign in front, so toString(-8, 2) == "-1000"
– Joe
Jan 10 '16 at 20:22
add ...
What is the maximum float in Python?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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Why is processing a sorted array faster than processing an unsorted array?
... of data[].)
Benchmarks: Core i7 920 @ 3.5 GHz
C++ - Visual Studio 2010 - x64 Release
// Branch - Random
seconds = 11.777
// Branch - Sorted
seconds = 2.352
// Branchless - Random
seconds = 2.564
// Branchless - Sorted
seconds = 2.587
Java - NetBeans 7.1.1 JDK 7 - x64
// Branch - Random
sec...
Is Java really slow?
...ther than explicit memory allocation. Plus bad library decisions.
Streams-based I/O is slow due to the (IMO, poor choice) to require synchronization on each stream access. NIO fixed this, but it is a pain to use. One can work around this by doing read/write to an array, instead of an element at a t...
Maximum length for MD5 input/output
...
The length of the message is unlimited.
Append Length
A 64-bit representation of b (the length of the message before the
padding bits were added) is appended to the result of the previous
step. In the unlikely event that b is greater than 2^64, then only
the low-ord...
Dynamically replace the contents of a C# method?
...e assembler generated from compiling the dynamic method. This works for 32/64Bit on Windows, macOS and any Linux that Mono supports.
Documentation can be found here.
Example
(Source)
Original Code
public class SomeGameClass
{
private bool isRunning;
private int counter;
private int...
Benchmarking (python vs. c++ using BLAS) and (numpy)
...
CPU: 2 x 16 Intel(R) Xeon(R) E2560 Sandy Bridge @ 2.00GHz (16 Cores)
RAM: 64 GB
Ivy (MKL, OpenBLAS, ATLAS):
CPU: 2 x 20 Intel(R) Xeon(R) E2680 V2 Ivy Bridge @ 2.80GHz (20 Cores, with HT = 40 Cores)
RAM: 256 GB
Software
The software stack is for both nodes the sam. Instead of GotoBLAS2, OpenB...
How can I check for NaN values?
...an too. If you constructed an actual NumPy NaN with something like np.float64('nan'), then you'd get np.float64('nan') is not np.float64('nan') too.
– user2357112 supports Monica
Apr 22 at 10:09
...
Is there a Python equivalent to Ruby's string interpolation?
...First is %s, second is %s" % (var1, var2).
– kirbyfan64sos
Nov 5 '15 at 20:07
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