diff options
Diffstat (limited to 'wctype')
| -rw-r--r-- | wctype/towctrans.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/wctype/towctrans.c b/wctype/towctrans.c index b0180fde55..425fd52d46 100644 --- a/wctype/towctrans.c +++ b/wctype/towctrans.c @@ -1,5 +1,5 @@ /* Map wide character using given mapping. - Copyright (C) 1996, 1997 Free Software Foundation, Inc. + Copyright (C) 1996, 1997, 2000 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 @@ -27,6 +27,11 @@ __towctrans (wint_t wc, wctrans_t desc) { size_t idx; + /* If the user passes in an invalid DESC valid (the one returned from + `wctrans' in case of an error) simply return the value. */ + if (desc == (wctrans_t) 0) + return wc; + idx = cname_lookup (wc); if (idx == ~((size_t) 0)) /* Character is not known. Default action is to simply return it. */ |