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What is stack unwinding?
...dling. Here's an example:
void func( int x )
{
char* pleak = new char[1024]; // might be lost => memory leak
std::string s( "hello world" ); // will be properly destructed
if ( x ) throw std::runtime_error( "boom" );
delete [] pleak; // will only get here if x == 0. if x!=0, th...
What does T&& (double ampersand) mean in C++11?
...UTION: the linked article on MSDN ("Rvalue References: C++0x Features in VC10, Part 2") is a very clear introduction to Rvalue references, but makes statements about Rvalue references that were once true in the draft C++11 standard, but are not true for the final one! Specifically, it says at variou...
What does curly brackets in the `var { … } = …` statements do?
...
answered Mar 8 '13 at 10:09
BlenderBlender
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Fastest way to convert an iterator to a list
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edited Sep 25 '10 at 18:41
answered Sep 24 '10 at 20:48
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Green Bars in Visual Studio 2010
I am wondering what these greens things are in Visual Studio 2010. What are they for? They look pretty random but of course they have to have some meaning. Can any one tell me?
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Boolean.hashCode()
...s?
Suppose for a second that we picked composite numbers (non-primes), say 1000 and 2000. When inserting booleans into a hash table, true and false would go into bucket 1000 % N resp 2000 % N (where N is the number of buckets).
Now notice that
1000 % 8 same bucket as 2000 % 8
1000 % 10 same buc...
Calling shell functions with xargs
...the function should do it (untested):
export -f echo_var
seq -f "n%04g" 1 100 | xargs -n 1 -P 10 -I {} bash -c 'echo_var "$@"' _ {}
You can use the builtin printf instead of the external seq:
printf "n%04g\n" {1..100} | xargs -n 1 -P 10 -I {} bash -c 'echo_var "$@"' _ {}
Also, using return 0 a...
Usage of sys.stdout.flush() method
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Haldean BrownHaldean Brown
10.4k44 gold badges3636 silver badges5555 bronze badges
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How do I execute a program using Maven?
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answered Mar 18 '10 at 19:29
Pascal ThiventPascal Thivent
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Why Choose Struct Over Class?
... 2 strategies of wrapping Int data type using struct and class. I am using 10 repeated values are to better reflect real world, where you have multiple fields.
class Int10Class {
let value1, value2, value3, value4, value5, value6, value7, value8, value9, value10: Int
init(_ val: Int) {
...