diff options
Diffstat (limited to 'newlib/libc/ctype/isblank.c')
| -rw-r--r-- | newlib/libc/ctype/isblank.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/newlib/libc/ctype/isblank.c b/newlib/libc/ctype/isblank.c index f4d38b95c..896a00768 100644 --- a/newlib/libc/ctype/isblank.c +++ b/newlib/libc/ctype/isblank.c @@ -17,7 +17,8 @@ TRAD_SYNOPSIS DESCRIPTION <<isblank>> is a function which classifies ASCII integer values by table lookup. It is a predicate returning non-zero for blank characters, and 0 -for other characters. +for other characters. It is defined only if <[c]> is representable as an +unsigned char or if <[c]> is EOF. RETURNS <<isblank>> returns non-zero if <[c]> is a blank character. |