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@@ -108,6 +108,7 @@ union BitsCvtImpl<4>{
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static constexpr int C0 = 127; // 2^7 - 1
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static constexpr int C0 = 127; // 2^7 - 1
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static constexpr int C1 = -62; // 2 - 2^6
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static constexpr int C1 = -62; // 2 - 2^6
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static constexpr int C2 = 63; // 2^6 - 1
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static constexpr int C2 = 63; // 2^6 - 1
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+ static constexpr NumberTraits<4>::int_t C3 = 0b1011'1111'1111'1111'1111'1111'1111'1111;
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BitsCvtImpl(NumberTraits<4>::float_t val): _float(val) {}
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BitsCvtImpl(NumberTraits<4>::float_t val): _float(val) {}
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BitsCvtImpl(NumberTraits<4>::int_t val): _int(val) {}
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BitsCvtImpl(NumberTraits<4>::int_t val): _int(val) {}
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@@ -127,6 +128,7 @@ union BitsCvtImpl<8>{
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static constexpr int C0 = 1023; // 2^10 - 1
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static constexpr int C0 = 1023; // 2^10 - 1
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static constexpr int C1 = -510; // 2 - 2^9
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static constexpr int C1 = -510; // 2 - 2^9
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static constexpr int C2 = 511; // 2^9 - 1
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static constexpr int C2 = 511; // 2^9 - 1
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+ static constexpr NumberTraits<8>::int_t C3 = 0b1011'1111'1111'1111'1111'1111'1111'1111'1111'1111'1111'1111'1111'1111'1111'1111;
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BitsCvtImpl(NumberTraits<8>::float_t val): _float(val) {}
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BitsCvtImpl(NumberTraits<8>::float_t val): _float(val) {}
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BitsCvtImpl(NumberTraits<8>::int_t val): _int(val) {}
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BitsCvtImpl(NumberTraits<8>::int_t val): _int(val) {}
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@@ -187,7 +189,7 @@ inline PyObject* tag_float(f64 val){
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inline f64 untag_float(PyObject* val){
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inline f64 untag_float(PyObject* val){
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BitsCvt decomposed(reinterpret_cast<Number::int_t>(val));
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BitsCvt decomposed(reinterpret_cast<Number::int_t>(val));
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- decomposed._int >>= 1;
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+ decomposed._int = (decomposed._int >> 1) & BitsCvt::C3;
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unsigned int exp_7b = decomposed._float_bits.exp;
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unsigned int exp_7b = decomposed._float_bits.exp;
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if(exp_7b == 0) return 0.0f;
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if(exp_7b == 0) return 0.0f;
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if(exp_7b == BitsCvt::C0){
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if(exp_7b == BitsCvt::C0){
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BLUELOVETH