Mathlib functions always returning 0

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#198

From: Luc M.
Date: Tue, 21 Oct 2003 02:27

28 lines
2198 bytes

I get '0' from a mathlib functions when I try to pass a parameter.
The functions return the proper value if the parameter is checked before
calling the function.

Assuming 'index' is equal to 2, why does the function 'sqrt(index)' return 0
in the following code:

   Int32 index;
   double c;

   index = StrAToI(FldGetTextPtr(fldInput));     /* field set so that index
is 2 */
   c = sqrt(index);                                              /* Returns
0 ? */


But it returns the proper value in the following code:

    index = StrAToI(FldGetTextPtr(fldInput));   /* field set so that index
is 2 */
    if(index == 2)
    {
      c = sqrt(index);                                          /* Returns
proper value !!! */
    }


Any help is greatly appreciated.

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From: "Luc M." <luc_martineau@hotmail.com>
Newsgroups: alt.comp.sys.palmtops.pilot,comp.sys.palmtops,comp.sys.palmtops.pilot,codewarrior.palm
Subject: Mathlib functions always returning 0 
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