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Fixing unsigned integer bug in bit-set?.

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Alex Shinn 2012-06-04 23:25:31 +09:00
parent befe63d6ba
commit fa0c699a6c
1 changed files with 3 additions and 3 deletions
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6
lib/srfi/33/bit.c
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@ -281,14 +281,14 @@ static sexp sexp_bit_set_p (sexp ctx, sexp self, sexp_sint_t n, sexp i, sexp x)
if (! sexp_fixnump(i))
return sexp_type_exception(ctx, self, SEXP_FIXNUM, i);
if (sexp_fixnump(x)) {
return sexp_make_boolean(sexp_unbox_fixnum(x) & (1<<sexp_unbox_fixnum(i)));
return sexp_make_boolean(sexp_unbox_fixnum(x) & (1UL<<sexp_unbox_fixnum(i)));
#if SEXP_USE_BIGNUMS
} else if (sexp_bignump(x)) {
pos = sexp_unbox_fixnum(i) / (sizeof(sexp_uint_t)*CHAR_BIT);
return sexp_make_boolean((pos < sexp_bignum_length(x))
&& (sexp_bignum_data(x)[pos]
& (1<<(sexp_unbox_fixnum(i)
- pos*sizeof(sexp_uint_t)*CHAR_BIT))));
& (1UL<<(sexp_unbox_fixnum(i)
- pos*sizeof(sexp_uint_t)*CHAR_BIT))));
#endif
} else {
return sexp_type_exception(ctx, self, SEXP_FIXNUM, x);