diff options
Diffstat (limited to 'math.c')
-rw-r--r-- | math.c | 15 |
1 files changed, 12 insertions, 3 deletions
@@ -442,7 +442,7 @@ math_log(int argc, VALUE *argv) { VALUE x, base; double d0, d; - size_t numbits = 0; + size_t numbits; rb_scan_args(argc, argv, "11", &x, &base); @@ -451,6 +451,9 @@ math_log(int argc, VALUE *argv) numbits -= DBL_MANT_DIG; x = rb_big_rshift(x, SIZET2NUM(numbits)); } + else { + numbits = 0; + } Need_Float(x); d0 = RFLOAT_VALUE(x); @@ -501,13 +504,16 @@ static VALUE math_log2(VALUE obj, VALUE x) { double d0, d; - size_t numbits = 0; + size_t numbits; if (RB_BIGNUM_TYPE_P(x) && RBIGNUM_POSITIVE_P(x) && DBL_MAX_EXP <= (numbits = rb_absint_numwords(x, 1, NULL))) { numbits -= DBL_MANT_DIG; x = rb_big_rshift(x, SIZET2NUM(numbits)); } + else { + numbits = 0; + } Need_Float(x); d0 = RFLOAT_VALUE(x); @@ -540,13 +546,16 @@ static VALUE math_log10(VALUE obj, VALUE x) { double d0, d; - size_t numbits = 0; + size_t numbits; if (RB_BIGNUM_TYPE_P(x) && RBIGNUM_POSITIVE_P(x) && DBL_MAX_EXP <= (numbits = rb_absint_numwords(x, 1, NULL))) { numbits -= DBL_MANT_DIG; x = rb_big_rshift(x, SIZET2NUM(numbits)); } + else { + numbits = 0; + } Need_Float(x); d0 = RFLOAT_VALUE(x); |