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From: CRN@BYUVM.BITNET
Newsgroups: comp.lang.c
Subject: This can't be a TurboC bug can it?
Message-ID: <90212.103511CRN@BYUVM.BITNET>
Date: 31 Jul 90 16:35:11 GMT
References: <1.2690d8b4@vx24.cc.monash.edu.au>
Organization: Brigham Young University
Lines: 33


I am having a VERY weird problem in TurboC.  My code looks
something like this:


typedef struct{
   . . .
   char   *str;
int    type;
}FIELD;


int proc(FIELD *fld)
{
   . . .
   if(!valid_str(fld->str))
      return ERROR;
   . . .
}

Here's the weird part.  Using Turbo Debugger I have found that my
program crashes right after this statement.  I perform a watch on
fld, fld->str, fld->type.  Before the call to valid_str() all of the
variables are fine.  Upon return from valid_str(), however, the
pointer, fld, is screwed up which of course in turn screws up
fld->str and fld->type.   I assume that fld is being overwritten
somehow but I can't figure out how.  Valid_str() does nothing to
manipulate fld and the only function that valid_str() calls is
atoi() (yes, I do include stdlib.h).  If anyone has any pointers
for me I'd sure appreciate hearing them.

-- Cory
(crn@byuvm.bitnet)