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What does “yield break;” do in C#?
...unction as an iterator, the body of the function may look like this:
for (int i = 0; i < 5; i++)
{
yield return i;
}
Console.Out.WriteLine("You will see me");
Note that after the loop has completed all its cycles, the last line gets executed and you will see the message in your console ap...
Why should I use var instead of a type? [duplicate]
...
I don't agree with this point at all - the compiler may generate the same bytecode for both but from a code readability/maintenance point of view surely its better for variables to be clearly typed - it avoids ambiguity and makes it clearer to read an...
Why can't an anonymous method be assigned to var?
...
Others have already pointed out that there are infinitely many possible delegate types that you could have meant; what is so special about Func that it deserves to be the default instead of Predicate or Action or any other possibility? And, for la...
How to get all subsets of a set? (powerset)
... is 2 ** len(A), so that could clearly be seen in the for loop.
I need to convert the input (ideally a set) into a list because by a set is a data structure of unique unordered elements, and the order will be crucial to generate the subsets.
selector is key in this algorithm. Note that selector ha...
What is the “right” JSON date format?
...is a non-standard hack/extension.
I would use a format that can be easily converted to a Date object in JavaScript, i.e. one that can be passed to new Date(...). The easiest and probably most portable format is the timestamp containing milliseconds since 1970.
...
How to create composite primary key in SQL Server 2008
...
create table my_table (
column_a integer not null,
column_b integer not null,
column_c varchar(50),
primary key (column_a, column_b)
);
share
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Clang vs GCC for my Linux Development project
...Clang's extremely clear diagnostics are definitely easier for beginners to interpret.
Consider this simple snippet:
#include <string>
#include <iostream>
struct Student {
std::string surname;
std::string givenname;
}
std::ostream& operator<<(std::ostream& out, Student c...
Why does C++ not allow inherited friendship?
...n? Was friendship really just a limited hack that has since found its way into a few obscure respectable uses?
10 Answers
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Difference between class and type
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A class is a type. An interface is a type. A primitive is a type. An array is a type.
Therefore, every type is also either a class (including an enum constant), an interface, a primitive, or an array.
There are two distinct categories of types:...
What is more efficient? Using pow to square or just multiply it with itself?
...T(2, b*b)
TEST(3, b*b*b)
TEST(4, b*b*b*b)
TEST(5, b*b*b*b*b)
template <int exponent>
double testpow(double base, long loops)
{
double x = 0.0;
boost::posix_time::ptime startTime = now();
for (long i=0; i<loops; ++i)
{
x += std::pow(base, exponent);
x += std...