Detecting end of file for VHDL'93

[Gary Thorpe]

Hi,

I am recompiling some VHDL files using the cadence tool ncvhdl (originally
compiled with vhdlan from synopsys). I am encountering an error saying that
std.textio.endline is not valid for VHDL'93. It works for the old tool and no
information I can find in the FAQ says that there is any alternate way to
detect when the end of a file is reached. Would anyone know the VHDL'93
compliant way to detect when the end of a file is reached?

 

Gary Thorpe <gthorpe@ee.ryerson.ca> wrote:

Hi,

I am recompiling some VHDL files using the cadence tool ncvhdl (originally
compiled with vhdlan from synopsys). I am encountering an error saying that
std.textio.endline is not valid for VHDL'93. It works for the old tool and no
information I can find in the FAQ says that there is any alternate way to
detect when the end of a file is reached. Would anyone know the VHDL'93
compliant way to detect when the end of a file is reached?

Sorry, I got the error message wrong: the problem is with endline and not
endfile. What is the VHDL'93 way of detecting the end of a line?

 

[Nicolas Matringe]

In VHDL'93 you have to use the 'length attribute:
if your_line'length = 0 then
...
end if;

Nicolas