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ieee_floatt: add preconditions #8540

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Merged
merged 1 commit into from
Dec 22, 2024
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ieee_floatt: add preconditions #8540

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10 changes: 10 additions & 0 deletions src/util/ieee_float.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -915,6 +915,8 @@ ieee_floatt &ieee_floatt::operator-=(const ieee_floatt &other)

bool ieee_floatt::operator<(const ieee_floatt &other) const
{
PRECONDITION(other.spec == spec);

if(NaN_flag || other.NaN_flag)
return false;

Expand Down Expand Up @@ -961,6 +963,8 @@ bool ieee_floatt::operator<(const ieee_floatt &other) const

bool ieee_floatt::operator<=(const ieee_floatt &other) const
{
PRECONDITION(other.spec == spec);

if(NaN_flag || other.NaN_flag)
return false;

Expand Down Expand Up @@ -994,6 +998,8 @@ bool ieee_floatt::operator>=(const ieee_floatt &other) const

bool ieee_floatt::operator==(const ieee_floatt &other) const
{
PRECONDITION(other.spec == spec);

// packed equality!
if(NaN_flag && other.NaN_flag)
return true;
Expand All @@ -1016,6 +1022,8 @@ bool ieee_floatt::operator==(const ieee_floatt &other) const

bool ieee_floatt::ieee_equal(const ieee_floatt &other) const
{
PRECONDITION(other.spec == spec);

if(NaN_flag || other.NaN_flag)
return false;
if(is_zero() && other.is_zero())
Expand All @@ -1038,6 +1046,8 @@ bool ieee_floatt::operator!=(const ieee_floatt &other) const

bool ieee_floatt::ieee_not_equal(const ieee_floatt &other) const
{
PRECONDITION(other.spec == spec);

if(NaN_flag || other.NaN_flag)
return true; // !!!
if(is_zero() && other.is_zero())
Expand Down
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