Templates - language feature

Example from C++, Real-Time Concurrent C:

template <int length>
Vector<length>& Vector<length>::operator+=(const Vector<length>& rhs)
{
    for (int i = 0; i < length; ++i)
        value[i] += rhs.value[i];
    return *this;
}

Example from D:

template TCopy(T)
{
    void copy(out T to, T from)
    {
        to = from;
    }
}
int i;
TCopy!(int).copy(i, 3);

Example from Nim:

# https://hookrace.net/blog/introduction-to-metaprogramming-in-nim/#templates
template debug*(args: varargs[string, `$`]) =
if logLevel <= Level.debug:
  const module = instantiationInfo().filename[0 .. ^5]
  echo "[$# $#][$#]: $#" % [getDateStr(), getClockStr(),
    module, join args]

Languages with Templates include C++, D, Nim, XL, Real-Time Concurrent C

Languages without Templates include C, Objective-C, Speedie, Tick C

This question asks: Does the language support templates?

Read more about Templates on the web: 1.

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