diff options
Diffstat (limited to 'stdlib/mbtowc.c')
| -rw-r--r-- | stdlib/mbtowc.c | 24 |
1 files changed, 16 insertions, 8 deletions
diff --git a/stdlib/mbtowc.c b/stdlib/mbtowc.c index 61b46f882e..50e7c09834 100644 --- a/stdlib/mbtowc.c +++ b/stdlib/mbtowc.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1991, 1992, 1995, 1996, 1997 Free Software Foundation, Inc. +/* Copyright (C) 1991, 92, 95, 96, 97, 98 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 @@ -43,14 +43,22 @@ mbtowc (wchar_t *pwc, const char *s, size_t n) restartable functions. We simply say here all encodings have a state. */ if (s == NULL) - return 1; + result = 1; + else if (*s == '\0') + { + if (pwc != NULL) + *pwc = L'\0'; + result = 0; + } + else + { + result = __mbrtowc (pwc, s, n, &__no_r_state); - result = __mbrtowc (pwc, s, n, &__no_r_state); - - /* The `mbrtowc' functions tell us more than we need. Fold the -1 - and -2 result into -1. */ - if (result < 0) - result = -1; + /* The `mbrtowc' functions tell us more than we need. Fold the -1 + and -2 result into -1. */ + if (result < 0) + result = -1; + } return result; } |