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What is the difference between square brackets and parentheses in a regex?
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127
These regexes are equivalent (for matching purposes):
/^(7|8|9)\d{9}$/
/^[789]\d{9}$/
/^[7-9...
Caveats of select/poll vs. epoll reactors in Twisted
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190
For very small numbers of sockets (varies depending on your hardware, of course, but we're tal...
How does having a dynamic variable affect performance?
..., for example, if you have:
class C
{
void M()
{
dynamic d1 = whatever;
dynamic d2 = d1.Foo();
then the compiler will generate code that is morally like this. (The actual code is quite a bit more complex; this is simplified for presentation purposes.)
class C
{
static...
GDB corrupted stack frame - How to debug?
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156
Those bogus adresses (0x00000002 and the like) are actually PC values, not SP values. Now, wh...
Force R not to use exponential notation (e.g. e+10)?
Can I force R to use regular numbers instead of using the e+10 -like notation? I have:
4 Answers
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Comparing two byte arrays in .NET
...numerable.SequenceEqual method.
using System;
using System.Linq;
...
var a1 = new int[] { 1, 2, 3};
var a2 = new int[] { 1, 2, 3};
var a3 = new int[] { 1, 2, 4};
var x = a1.SequenceEqual(a2); // true
var y = a1.SequenceEqual(a3); // false
If you can't use .NET 3.5 for some reason, your method is ...
Print new output on same line [duplicate]
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187
From help(print):
Help on built-in function print in module builtins:
print(...)
print(v...
Canary release strategy vs. Blue/Green
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edited Feb 7 '16 at 1:51
answered Jun 3 '14 at 12:39
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How to convert std::string to LPCWSTR in C++ (Unicode)
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138
Thanks for the link to the MSDN article. This is exactly what I was looking for.
std::wstring...
How to get client's IP address using JavaScript?
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