7b4cd6f7b
Denys Vlasenko
2009-10-23
Subject
libbb: smaller isdigit. -95 bytes
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include/libbb.h+3 -2
| @@ -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 | |