diff options
Diffstat (limited to 'include/libbb.h')
| -rw-r--r-- | include/libbb.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/include/libbb.h b/include/libbb.h index fb7296f25..ad0d59d04 100644 --- a/include/libbb.h +++ b/include/libbb.h @@ -1579,9 +1579,10 @@ extern const char bb_default_login_shell[]; #undef isupper #undef isxdigit -/* This one is more efficient - we save ~400 bytes */ +/* This one is more efficient - we save ~500 bytes. + * BTW, x86 likes (unsigned char) cast more than (unsigned). */ #undef isdigit -#define isdigit(a) ((unsigned)((a) - '0') <= 9) +#define isdigit(a) ((unsigned char)((a) - '0') <= 9) /* This one is more efficient too! ~200 bytes */ /* In POSIX/C locale (the only locale we care about: do we REALLY want |