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libbb: smaller isdigit. -95 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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@ -1579,9 +1579,10 @@ extern const char bb_default_login_shell[];
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#undef isupper
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#undef isupper
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#undef isxdigit
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#undef isxdigit
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/* This one is more efficient - we save ~400 bytes */
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/* This one is more efficient - we save ~500 bytes.
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* BTW, x86 likes (unsigned char) cast more than (unsigned). */
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#undef isdigit
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#undef isdigit
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#define isdigit(a) ((unsigned)((a) - '0') <= 9)
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#define isdigit(a) ((unsigned char)((a) - '0') <= 9)
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/* This one is more efficient too! ~200 bytes */
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/* This one is more efficient too! ~200 bytes */
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/* In POSIX/C locale (the only locale we care about: do we REALLY want
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/* In POSIX/C locale (the only locale we care about: do we REALLY want
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