Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

C2H. does not recognize functions.

Hi

Every time I rightclick and selects the accelerated with ..... menu item,

I get this error message:

selection is not recognized as a function

the text you have selected "(text)" is not a function. only functions can be accelerated.

I have tried to select the function below in any possible way I can think of but without success.

int this_is_a_function (int a)

{

return a*2;

}

BTW: I still uses NIOSII 7.2SP2.

3 Replies

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    15 years ago

    Try putting the function on the same line as the return type:

    int this_is_a_function(int a)

    {

    return a*2;

    }

    The C2H compiler runs the GCC preprocessor on the C file and then it takes it from there so it probably wasn't expecting the return type to be on a separate line. If that fixes it and you want to keep this style I suggest putting a '\' after the 'int' so that it'll be treated as a single line.
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    15 years ago

    Hi. I am having this issue now!! Still unable to solve it? Any ideas? did you manage to do solve it?

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    15 years ago

    Do you have some# define directive around this function?

    Sometime C2H might not recognize the function if it's in a# ifdef directive and the variable define condition variable is in another file.

    Also check out that whether or not Eclipse outline can see your function. Although it's not related to C2H but if you see it in the file outline, it means that the function is properly defined.