Fscanf Return Value

SystemVerilog
,
1

initial begin
bit [127:0] cmd;
int file, c;

file = $fopen ("commands.txt", "r");
while (!$feof(file)) begin
	c = $fscanf (file, "%s", cmd);
end
$fclose (file);

end

What will the value of c be in every iteration of the while loop?

2

The answer to your question is in the last paragraph of section 21.3.4.3 Reading formatted data of the 1800-2012 LRM.

If you are having some confusion about what you are seeing, perhaps in the last iteration of the loop, why don’t you explain what you are seeing verses what you expected to see.