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Re: another memory leak, with patch


From: Ben Pfaff
Subject: Re: another memory leak, with patch
Date: Sun, 30 Nov 2008 15:38:32 -0800
User-agent: Gnus/5.11 (Gnus v5.11) Emacs/22.2 (gnu/linux)

Thanks, I pushed this to master.

John Darrington <address@hidden> writes:

> Looks fine to me.
>
> On Mon, Nov 24, 2008 at 10:12:57PM -0800, Ben Pfaff wrote:
>      valgrind reports:
>      
>          ==3634== 194 (102 direct, 92 indirect) bytes in 4 blocks are 
> definitely lost in loss record 12 of 15
>          ==3634==    at 0x4022AB8: malloc (vg_replace_malloc.c:207)
>          ==3634==    by 0x40E37C1: xmalloc (xmalloc.c:49)
>          ==3634==    by 0x414FDA1: get_system_decimal (i18n.c:237)
>          ==3634==    by 0x413D944: settings_init (settings.c:153)
>          ==3634==    by 0x804A808: main (main.c:109)
>      
>      Proposed fix below.  Comments?
>      
>      commit 17aed102d2f038e56b33eb0124652e15a21631e6
>      Author: Ben Pfaff <address@hidden>
>      Date:   Mon Nov 24 22:12:01 2008 -0800
>      
>          Fix memory leak in get_system_decimal().
>      
>      diff --git a/src/libpspp/i18n.c b/src/libpspp/i18n.c
>      index bda2676..db85121 100644
>      --- a/src/libpspp/i18n.c
>      +++ b/src/libpspp/i18n.c
>      @@ -225,24 +225,24 @@ i18n_done (void)
>       char
>       get_system_decimal (void)
>       {
>      -  char *radix_char = NULL;
>      +  char radix_char;
>       
>         char *ol = setlocale (LC_NUMERIC, NULL);
>         setlocale (LC_NUMERIC, "");
>       
>       #if HAVE_NL_LANGINFO
>      -  radix_char = nl_langinfo (RADIXCHAR);
>      +  radix_char = nl_langinfo (RADIXCHAR)[0];
>       #else
>         {
>      -    char *buf = xmalloc (10);
>      -    snprintf (buf, 10, "%f", 2.5);
>      -    radix_char = &buf[1];
>      +    char buf[10];
>      +    snprintf (buf, sizeof buf, "%f", 2.5);
>      +    radix_char = buf[1];
>         }
>       #endif
>       
>         /* We MUST leave LC_NUMERIC untouched, since it would
>            otherwise interfere with data_{in,out} */
>         setlocale (LC_NUMERIC, ol);
>      -  return *radix_char;
>      +  return radix_char;
>       }
>       
>      
>      -- 
>      Ben Pfaff 
>      http://benpfaff.org
>      
>      
>      _______________________________________________
>      pspp-dev mailing list
>      address@hidden
>      http://lists.gnu.org/mailman/listinfo/pspp-dev
>
> -- 
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> fingerprint = 8797 A26D 0854 2EAB 0285  A290 8A67 719C 2DE8 27B3
> See http://pgp.mit.edu or any PGP keyserver for public key.
>
>

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"Unix... is not so much a product
 as it is a painstakingly compiled oral history
 of the hacker subculture."
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