[M3devel] Problem interfacing C lib

[Dragiša Durić]

Tried that earlier… One of my first guesses. Same thing happens.

On Mar 19, 2012, at 6:47 PM, Antony Hosking wrote:

> 
> On Mar 19, 2012, at 1:13 PM, Dragiša Durić wrote:
> 
>> #1  0x00000035bd8172a0 in evbuffer_search_range (buffer=0x694090, what=0x7 <Address 0x7 out of bounds>, len=0, start=0x0, end=0x7fffffffdbb0)
>>   at buffer.c:2441
>> #2  0x0000000000404a0c in Buffer__Search (t=<error reading variable>, pattern=<error reading variable>, from=<error reading variable>, 
>>   to=<error reading variable>) at ../src/Buffer.m3:150
>> 
>> Buffer.m3:150
>>       pos := evbuffer.search_range(t.b, LOOPHOLE(chars, ADDRESS), len, NIL, NIL);
>> 
>> t.b is a pointer, so is chars… len is Utypes.size_t and it's value is 7.
>> 
>> <* EXTERNAL evbuffer_search_range *>
>> PROCEDURE search_range(buf: t; what: char_star; len: size_t; start, end: UNTRACED REF ptr): ptr;
> 
> I’m betting start and end should be ADDRESS, not UNTRACED REF.  I am sure that they do not refer to an allocated ptr, but rather to some address within buf or char_star.  Is chars an array?  In which case, perhaps ADR(chars[0])?
> 
>> 
>> t is an ADDRESS, and so on…
>> 
>> Critical Mass Modula-3 version d5.9.0
>> last updated: 2010-07-21
>> compiled: 2010-10-04 07:24:16
>> configuration: /etc/cm3.cfg
>> host: AMD64_LINUX
>> target: AMD64_LINUX
>> 
>> 
>> Any ideas? TIA,
>> dd
>> 
>