tanya ~master (2021-06-04T07:37:50Z)

DList.insertBefore

tanya container list DList

Inserts new elements before r.

  1. size_t insertBefore(Range r, R el)
  2. size_t insertBefore(Range r, T el)
  3. size_t insertBefore(Range r, R el)
    struct DList(T)
    size_t
    insertBefore
    (
    R
    )
    (
    Range r
    ,
    scope R el
    )
    if (
    !isInfinite!R &&
    isInputRange!R
    &&
    isImplicitlyConvertible!(ElementType!R, T)
    )
  4. size_t insertBefore(Range r, T[R] el)

Parameters

R

Type of the inserted value(s).

r Range

Range extracted from this list.

el R

New element(s).

Return Value

Type: size_t

The number of elements inserted.

Precondition: r is extracted from this list.

Examples

auto l1 = DList!int([234, 5, 1]);
auto l2 = DList!int([5, 1]);
l2.insertBefore(l2[], 234);
assert(l1 == l2);

auto l1 = DList!int([234, 5, 1]);
auto l2 = DList!int([5, 1]);
int var = 234;

l2.insertBefore(l2[], var);
assert(l1 == l2);

auto l1 = DList!int([5, 234, 30, 1]);
auto l2 = DList!int([5, 1]);
auto r = l2[];
r.popFront();
l2.insertBefore(r, [234, 30]);
assert(l1 == l2);

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tanya container list DList aliasesconstructorsdestructorsfunctionsmixinspostblitsproperties

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