Iota

Template, similar to iota(), but generates a tuple at compile time.

Useful for "static foreach" loops, where range extrema are compile time constants:

foreach (i; Iota!(3))
a[i] = b[i];

// becomes unrolled and compiled as:
a[0] = b[0];
a[1] = b[1];
a[2] = b[2];

template Iota(int stop)
template Iota(int start, int stop)
template Iota(int start, int stop, int step)
template Iota (
int start
int stop
int step
) {
alias Iota = ExpressionList!();
alias Iota = ExpressionList!(Iota!(start, stop - step, step), stop - step);
alias Iota = ExpressionList!();
alias Iota = ExpressionList!(Iota!(start, stop - step, step), stop - step);
}

Members

Aliases

Iota alias Iota = ExpressionList!(): Undocumented in source.
Iota alias Iota = ExpressionList!(Iota!(start, stop - step, step), stop - step): Undocumented in source.
Iota alias Iota = ExpressionList!(): Undocumented in source.
Iota alias Iota = ExpressionList!(Iota!(start, stop - step, step), stop - step): Undocumented in source.

Meta

Source

See Implementation
https://issues.dlang.org/show_bug.cgi?id=4085

stribog meta iota templates

Iota