OpenEuphoria

1. integer constant overflow

• Posted by raseunew Feb 06, 2011
• 1624 views

Euphoria Interpreter v4.0.0
Linux, Using System Memory
Revision Date: 2010-12-22, Id: 115714454200

the following code crashes when run after translation

the translation commands are

$ euc -con test.ex
$ ./test

constant MINVAL_1 = 2.0 
atom     MINVAL_2 = 2.0 
 
function doit() 
 
   atom amt1 = 0 
   atom amt2 = 0 
   atom amt3 = 0 
   atom amt4 = 0 
 
   amt1 += MINVAL_1 
   amt2 -= MINVAL_1 
 
   amt3 += MINVAL_2 
   amt4 -= MINVAL_2 
 
   return 0 
 
end function 
 
? doit() 
 

part of the generated code 'test.c' contains

    /**  amt1 += MINVAL_1*/ 
    _amt1_145 = NewDouble((double)0 + DBL_PTR(-1295837195870999949586246503082820524326358132599250911397783755038038489864013682116184556430441987592636661296475806242151395110594288345544824579900198053196264090075980164902 
1131955125999812493113783567960893398430315545464157532966734476954357462767975066016679066281769169231978029986946841820052586496)->dbl); 
 
    /**  amt2 -= MINVAL_1*/ 
    _amt2_146 = NewDouble((double)0 - DBL_PTR(-1295837195870999949586246503082820524326358132599250911397783755038038489864013682116184556430441987592636661296475806242151395110594288345544824579900198053196264090075980164902 
1131955125999812493113783567960893398430315545464157532966734476954357462767975066016679066281769169231978029986946841820052586496)->dbl); 
 
    /**  amt3 += MINVAL_2*/ 
    _amt3_147 = NewDouble((double)0 + DBL_PTR(_1MINVAL_2_142)->dbl); 
 
    /**  amt4 -= MINVAL_2*/ 
    _amt4_148 = NewDouble((double)0 - DBL_PTR(_1MINVAL_2_142)->dbl); 

gcc compiles fine without error, but the app crashes when run.

tcc (Tiny CC, Fabrice Bellard) does not compile, and crashes
with integer constant overflow error

3. Re: integer constant overflow

• Posted by jaygade Feb 08, 2011
• 1488 views

I was playing with this and found another bug - the interpreter does not handle scientific notation correctly. See ticket:609