Function firstTrue [src]

Prototype

pub fn firstTrue(vec: anytype) ?VectorIndex(@TypeOf(vec))

Source

  pub fn firstTrue(vec: anytype) ?VectorIndex(@TypeOf(vec)) {
    const len = vectorLength(@TypeOf(vec));
    const IndexInt = VectorIndex(@TypeOf(vec));

    if (!@reduce(.Or, vec)) {
        return null;
    }
    const all_max: @Vector(len, IndexInt) = @splat(~@as(IndexInt, 0));
    const indices = @select(IndexInt, vec, iota(IndexInt, len), all_max);
    return @reduce(.Min, indices);
}  