diff options
Diffstat (limited to 'newlib/libc/ctype/islower.c')
| -rw-r--r-- | newlib/libc/ctype/islower.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/newlib/libc/ctype/islower.c b/newlib/libc/ctype/islower.c index bef010b8b..ec4309610 100644 --- a/newlib/libc/ctype/islower.c +++ b/newlib/libc/ctype/islower.c @@ -18,7 +18,8 @@ DESCRIPTION <<islower>> is a macro which classifies ASCII integer values by table lookup. It is a predicate returning non-zero for minuscules (lowercase alphabetic characters), and 0 for other characters. -It is defined only when <<isascii>>(<[c]>) is true or <[c]> is EOF. +It is defined only if <[c]> is representable as an unsigned char or if +<[c]> is EOF. You can use a compiled subroutine instead of the macro definition by undefining the macro using `<<#undef islower>>'. |