Sha256: 2551bbce82743c1756fab538f216754dc6b6454c859793ee53f46511734a00ac

Contents?: true

Size: 609 Bytes

Versions: 4

Compression:

Stored size: 609 Bytes

Contents

/*
  Extract an element only if self is a dimensionless NArray.
  @overload extract
  @return [Numeric,Numo::NArray]
  --- Extract element value as Ruby Object if self is a dimensionless NArray,
  otherwise returns self.
*/

static VALUE
numo_bit_extract(VALUE self)
{
    BIT_DIGIT *ptr, val;
    size_t pos;
    narray_t *na;
    GetNArray(self,na);

    if (na->ndim==0) {
        pos = na_get_offset(self);
        ptr = (BIT_DIGIT*)na_get_pointer_for_read(self);
        val = ((*((ptr)+(pos)/NB)) >> ((pos)%NB)) & 1u;
        na_release_lock(self);
        return INT2FIX(val);
    }
    return self;
}

Version data entries

4 entries across 4 versions & 1 rubygems

Version Path
numo-narray-0.9.0.4 ext/numo/narray/gen/tmpl_bit/extract.c
numo-narray-0.9.0.3-x86-mingw32 ext/numo/narray/gen/tmpl_bit/extract.c
numo-narray-0.9.0.3-x64-mingw32 ext/numo/narray/gen/tmpl_bit/extract.c
numo-narray-0.9.0.3 ext/numo/narray/gen/tmpl_bit/extract.c