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std::shared_ptr thread safety explained
...pace std;
struct A
{
int a;
A(int a) : a(a) {}
};
int main(int argc, char **argv)
{
shared_ptr<A> a(new A(1));
shared_ptr<A> b(a), c(a), d(a);
cout << "a: " << a->a << "\tb: " << b->a
<< "\tc: " << c->a << "\td: " <&...
How to initialize an array in Java?
...
+1. You have an extra opening brace. One can also write: data[0] = 10; data[1] = 20; .... after int data[] = new int[10], but it is too much code and it will end up doing the same thing.
– Hamish Grubijan
...
Mod in Java produces negative numbers [duplicate]
...om, then the branch prediction penalty will cost more clock cycles than an extra remainder calculation on most CPUs. Or, if you want to conditionally add a value based on whether an int is negative or not, try (maybeNegative >> 31) ^ thingToMaybeAdd + thingToAddTo
– Scot...
jQuery get html of container including the container itself
... @mc10 we can simply use clone() and you will not have to worry about extra elements created. var x = $('#container').clone().wrap('<p/>').parent().html();. The idea of wrap is great and allot less complicated then most of the solutions provided.
– Pinkie
...
Can an enum class be converted to the underlying type?
...t16_t /*v*/) {
std::cout << "uint16_t!\n";
}
int main(int argc, char* argv[]) {
SomeEnum e = B;
write(util::underlying_cast(e));
return 0;
}
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Is there a good jQuery Drag-and-drop file upload plugin? [closed]
...desktop drag+drop plugin out there that I know of which allows you to send extra data along with the file, including data that can be calculated at the time of upload with a callback function.
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How to make a div with no content have a width?
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Use min-height: 1px; Everything has at least min-height of 1px so no extra space is taken up with nbsp or padding, or being forced to know the height first.
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Why is the order in dictionaries and sets arbitrary?
...ing randomness. Python doesn't: its most
important hash functions (for strings and ints) are very regular in common
cases:
>>> map(hash, (0, 1, 2, 3))
[0, 1, 2, 3]
>>> map(hash, ("namea", "nameb", "namec", "named"))
[-1658398457, -1658398460, -1658398459, -1658398462]
...
wait() or sleep() function in jquery?
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There is an function, but it's extra:
http://docs.jquery.com/Cookbook/wait
This little snippet allows you to wait:
$.fn.wait = function(time, type) {
time = time || 1000;
type = type || "fx";
return this.queue(type, function() {
var s...
Determine the path of the executing BASH script [duplicate]
...
Your second line has an extra double-quote character.
– Eric Seppanen
Jun 29 '10 at 18:44
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