+1999-07-28 Ulrich Drepper <drepper@cygnus.com>
+
+ * stdlib/mblen.c: Use static state.
+ Reported by Bruno Haible <haible@ilog.fr>.
+
+ * stdlib/mbtowc.c: Reset state for s == NULL.
+ * stdlib/wctomb.c: Likewise.
+ Reported by Bruno Haible <haible@ilog.fr>.
+
+ * stdlib/mbstowcs.c: Do not use global state.
+ Reported by Bruno Haible <haible@ilog.fr>.
+
1999-07-28 Andeas Schwab <schwab@suse.de>
* iconvdata/Makefile: Don't try to run iconv tests when cross
Boston, MA 02111-1307, USA. */
#include <stdlib.h>
+#include <string.h>
#include <wchar.h>
#include <gconv.h>
#include <wcsmbs/wcsmbsload.h>
+/* Internal state. */
+static mbstate_t state;
+
/* Return the length of the multibyte character (if there is one)
at S which is no longer than N characters.
The ISO C standard says that the `mblen' function must not change
- the global state. */
+ the state of the `mbtowc' function. */
int
mblen (const char *s, size_t n)
{
- mbstate_t state;
int result;
/* If S is NULL the function has to return null or not null
/* Make sure we use the correct value. */
update_conversion_ptrs ();
+ /* Reset the state. */
+ memset (&state, '\0', sizeof state);
+
result = __wcsmbs_gconv_fcts.towc->__stateful;
}
else if (*s == '\0')
- /* According to the ISO C 89 standard this is the expected behaviour.
- Idiotic, but true. */
+ /* According to the ISO C 89 standard this is the expected behaviour. */
result = 0;
else
{
-/* Copyright (C) 1991, 1992, 1996, 1997 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 1992, 1996, 1997, 1999 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
Boston, MA 02111-1307, USA. */
#include <stdlib.h>
+#include <string.h>
#include <wchar.h>
-extern mbstate_t __no_r_state; /* Defined in mbtowc.c. */
-
/* Convert the string of multibyte characters in S to `wchar_t's in
PWCS, writing no more than N. Return the number written,
or (size_t) -1 if an invalid multibyte character is encountered.
size_t
mbstowcs (wchar_t *pwcs, const char *s, size_t n)
{
- mbstate_t save_shift = __no_r_state;
- size_t written;
-
- written = __mbsrtowcs (pwcs, &s, n, &__no_r_state);
-
- /* Restore the old shift state. */
- __no_r_state = save_shift;
+ mbstate_t state;
+ memset (&state, '\0', sizeof state);
/* Return how many we wrote (or maybe an error). */
- return written;
+ return __mbsrtowcs (pwcs, &s, n, &state);
}
/* Make sure we use the correct value. */
update_conversion_ptrs ();
+ /* This is an extension in the Unix standard which does not directly
+ violate ISO C. */
+ memset (&__no_r_state, '\0', siyeof __no_r_state);
+
result = __wcsmbs_gconv_fcts.towc->__stateful;
}
else if (*s == '\0')
/* Make sure we use the correct value. */
update_conversion_ptrs ();
+ /* This is an extension in the Unix standard which does not directly
+ violate ISO C. */
+ memset (&__no_r_state, '\0', siyeof __no_r_state);
+
return __wcsmbs_gconv_fcts.tomb->__stateful;
}