title: std_logic to integer conversion
body: <p>I would like to convert my sys-clock (std_logic) to an integer value (sys_clk). Therefore I am using following libs: </p>
  
  <pre><code>library IEEE;
  use IEEE.std_logic_1164.all;
  use IEEE.numeric_std.all;
  
  -- code example 
  sys_clk         : INTEGER;
  clk_clk         : in  std_logic;
  </code></pre>
  
  <p>how can I convert the clk_clk to my sys_clk?</p>
  
  <p>Thanks</p>