[lode.leroy: BUG: mbsrtowcs does not conform to spec]

[Jeff Johnston]

Fixed.  Thanks.

-- Jeff J.

Christopher Faylor wrote:

>----- Forwarded message from lode.leroy
>
>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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