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Message-ID: <000b01c33f27$ef318420$1601a8c0@andreywin>
To: "Oriol" <omagrane@anthill.es>
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Date: Mon, 30 Jun 2003 19:52:04 +0300
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Subject: Re: [PHP-DEV] Simple question
From: andrey@webgate.bg ("Andrey Hristov")

 Oriol,
try valgrind (aka memory checker) and you will hopefully find where your
problem resides

Andrey

----- Original Message -----
From: "Oriol" <omagrane@anthill.es>
To: <internals@lists.php.net>
Sent: Monday, June 30, 2003 7:13 PM
Subject: [PHP-DEV] Simple question


>
>     Hello! I'm trying to write a trim function which expects a zval* of
type
> string, as follows:
>
> int zstrtrim(zval *z)
> {
>     char *ptr1 = Z_STRVAL_P(z), *ptr2;
>     if (Z_STRLEN_P(z) == 0) return;
>     ptr2 = &ptr1[Z_STRLEN_P(z)-1];
>     while (*ptr1 != 0)
>     {
>         if (*ptr1 > ' ') break;
>         ptr1++;
>     }
>     while (ptr2 > ptr1)
>     {
>         if (*ptr2 > ' ') break;
>         ptr2--;
>     }
>     ZVAL_STRINGL(z, ptr1, ptr2 - ptr1 + 1, 1);
> }
>
>     However, the last line gives me a segmentation fault. Why? How can I
> change the value of the input zval string?
>     Thank you for your patience!
>
>     Oriol
>
>
>
>
>
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