Function BasicString.reserve

Requests that the string capacity be adapted to a planned change in size to a length of up to n characters (utf code units).

void reserve (
  const size_t n
) scope;

If n is greater than the current string capacity, the function causes the container to increase its capacity to n characters (or greater).

In all other cases, it do nothing.

This function has no effect on the string length and cannot alter its content.


BasicString!char str = "123";
assert(str.capacity == BasicString!char.minimalCapacity);

const size_t cap = (str.capacity * 2);
assert(str.capacity > BasicString!char.minimalCapacity);
assert(str.capacity >= cap);