An Acf structure consists of a pair of arf_struct:s. An acf_t is defined as an array of length one of type acf_struct, permitting an acf_t to be passed by reference.

Createst a new CAcf structure encapsulated in Acf.

Access to the C pointer in Acf structure.

acf_init x

Initializes the variable x for use, and sets its value to zero.

acf_clear x

Clears the variable x, freeing or recycling its allocated memory.

acf_swap z x

Swaps z and x efficiently.

acf_allocated_bytes x

Returns the total number of bytes heap-allocated internally by this object. The count excludes the size of the structure itself. Add sizeof(acf_struct) to get the size of the object as a whole.

acf_real_ptr z

acf_imag_ptr z

Returns a pointer to the real or imaginary part of z.

acf_set z x

Sets z to the value x.

acf_equal x y

Returns whether x and y are equal.

acf_add res x y prec rnd

acf_sub res x y prec rnd

acf_mul res x y prec rnd

Sets res to the sum, difference or product of x or y, correctly rounding the real and imaginary parts in direction rnd. The return flag has the least significant bit set if the real part is inexact, and the second least significant bit set if the imaginary part is inexact.

acf_approx_inv res x prec rnd

acf_approx_div res x y prec rnd

acf_approx_sqrt res x prec rnd

Computes an approximate inverse, quotient or square root.

acf_approx_dot res initial subtract x xstep y ystep len prec rnd

Computes an approximate dot product, with the same meaning of the parameters as arb_dot.