OpenEuphoria

Re: SWITCH question

• Posted by irv Jan 06, 2018
• 1979 views

The problem is definitely in the thread() function: Running with the added printf lines shown below (starting around line 2022 of be_execute.c:

// threaded code 
		if (Executing == FALSE) 
		{ 
			// TODO  XXX might this affect exit code improperly? 
			Cleanup(1); 
			return; 
		} 
		printf("E1a\n"); 
		thread(); 
		printf("E1b\n"); 
		switch((intptr_t)pc) { 

I get

E1a -- note: this is during first phase (parsing?) 
1   -- printed as expected 
1   -- ditto 
E1a -- second parsing (while in switch loop?) 
 
/home/irv/t1.ex:9 
A machine-level exception occurred during execution of this statement (signal 11)  

Notice it goes thru E1a twice. Trying different ways to declare "op" in my test code:

constant op = stack:new(FIFO)  -- hits E1a twice, crashing on second encounter. 
constant op = cos(0) -- hits E1a only once, prior to printing the 1's, then crashes 
constant op = 1 -- hits E1a only once, prior to printing the 1's, and runs correctly 

BTW: adding the -DINT_CODES gave me a world of errors: