textio的问题！ textio

long

我在result.dat文件中写入1001011010010110，然后定义一个变量input为std_logic_vector(15 downto 0),在作textio时，要将文件中的这串数字传给我的变量,可modelsim总是报error，No feasible entries for subprogram read，这是为什么阿？ file input1:text open read_mode is "result.dat"; variable dline:line; variable inputer: std_logic_vector(15 downto 0); BEGIN case presentstate is when "001" => readline(input1,dline); read(dline,inputer); input <=inputer; when others => input<="0000000000000000";

ljp

If you have Modelsim, it comes with the source code of all the ieee, std libraries.       
        For example, if you installed Modelsim on your C: drive, the source code can be found at:               
        C:\Modeltech_5.5f\vhdl_src               
                       
        If you don't have modelsim, I can email the package to you.       
                       
        The libraries are very well written.??I personally learned a lot from reading the source code of the textio package.