====== Function call ======
===== Definitions =====
==== function_call ====
''function _[[.:bnf#name]] [ ( actual_parameter_part ) ]''

==== actual_parameter_part ====
''parameter _[[.:bnf#association_list]]''

===== Examples =====
With this function call //exnor_out// receives the return value of the function //exnor// .
<code vhdl>exnor_out <= exnor(in1, in2);</code>

----

//x2// receives the return value of the function //exnor// . Here, the transfer parameters //a// and //b// have the values of the stated vector ranges.
<code vhdl>
x2 <= exnor (
      a => in1(2 downto 0),
      b => in2(2 downto 0) );
</code>

----

i receives the sum of the return values of the two functions //bit_to_integer// and //count_ones// .
<code vhdl>
i <= bit_to_integer(bit_a => in(8)) +
      count_ones(in2);
</code>