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Message-ID: <20155.194.7.240.2.1074684819.squirrel@webmail.advalvas.be>
Date: Wed, 21 Jan 2004 12:33:39 +0100 (CET)
Subject: BUG: mbsrtowcs does not conform to spec
From: lode.leroy@advalvas.be
To: cygwin@cygwin.com
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The spec says that mbsrtowcs() should return the length of the string
_even_when_the_output_buffer_is_NULL_ .

currently mbsrtowcs(NULL, ...) returns 0.

#include <stdio.h>
#include <wchar.h>
#include <string.h>

main()
{
   int len;
   char* s = "test";
   mbstate_t mbstate;
   memset(&mbstate, 0, sizeof(mbstate));
   len = mbsrtowcs(NULL, (const char **)&s, 0, &mbstate);

   printf("s='%s' - strlen(s)=%d - mbstowcs(s)=%d\n", s, strlen(s), len);
}

cygwin$ ./mbsrtowcs
s='test' - strlen(s)=4 - mbstowcs(s)=0

linux$ ./mbsrtowcs
s='test' - strlen(s)=4 - mbstowcs(s)=4


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