head

NativeHelpers::Array - helper subroutines for native arrays


This provides a number of exported subroutines that may be useful for
working with native L<CArray>s.  The subroutines aren't particularly
complicated but it saves having to have the same code in multiple modules.


sub copy-to-carray(@items, Mu $type) returns CArray is export


Copy the array to the new CArray typed as per C<$type>. If the supplied type
is not a valid native type there will be an exception.  If the elements of the
array are out of range for the type then the values in the CArray may be
truncated.


sub copy-to-array(CArray $carray, Int $items) returns Array is export


Copy the supplied CArray of the given length to a new Array.


sub copy-buf-to-carray(Buf $buf) returns CArray[uint8] is export


Copy the elements of the supplied L<Buf> to a L<CArray[uint8]>.


sub copy-carray-to-buf(CArray $array, Int $no-elems) returns Buf is export


Copy the L<CArray[uint8]> of the specified number of elements to a L<Buf>




module NativeHelpers::Array {

    use NativeCall;

    sub copy-to-carray(@items, Mu $type --> CArray ) is export {
        my $array = CArray[$type].new;
        $array[$_] = @items[$_] for ^@items.elems;
        $array;
    }

    sub copy-to-array(CArray $carray, Int $items --> Array ) is export {
        my @array;
        @array[$_] = $carray[$_] for ^$items;
        @array;
    }

    sub copy-buf-to-carray(Buf $buf --> CArray[uint8] ) is export {
        my $carray = CArray[uint8].new;
        $carray[$_] = $buf[$_] for ^$buf.elems;
        $carray;
    }

    sub copy-carray-to-buf(CArray $array, Int $no-elems --> Buf ) is export {
        my $buf = Buf.new;
        $buf[$_] = $array[$_] for ^$no-elems;
        $buf;
    }

}
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Array

NAME

DESCRIPTION

SUBROUTINES

sub copy-to-carray

sub copy-to-array

sub copy-buf-to-carray

sub copy-carray-to-buf(

NativeHelpers::Array v0.0.5

Authors

License

Dependencies

Test Dependencies

Provides

Documentation