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Fix comparison of class objects (#4346)

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Ryszard Rozak 2023-07-07 13:20:23 +02:00 committed by GitHub
parent 9aa90569bf
commit da043ca16d
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2 changed files with 17 additions and 2 deletions
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10
include/verilated_types.h
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@ -1508,8 +1508,14 @@ public:
// For 'if (ptr)...'
operator bool() const { return m_objp; }
// In SV A == B iff both are handles to the same object (IEEE 1800-2017 8.4)
bool operator==(const VlClassRef& rhs) const { return m_objp == rhs.m_objp; };
bool operator!=(const VlClassRef& rhs) const { return m_objp != rhs.m_objp; };
template <typename T_OtherClass>
bool operator==(const VlClassRef<T_OtherClass>& rhs) const {
return m_objp == rhs.m_objp;
};
template <typename T_OtherClass>
bool operator!=(const VlClassRef<T_OtherClass>& rhs) const {
return m_objp != rhs.m_objp;
};
};
template <typename T, typename U>

9
test_regress/t/t_class_compare.v
View File

@ -14,13 +14,22 @@ class Cls;
int i;
endclass
class ExtendCls extends Cls;
endclass
module t;
initial begin
Cls a = new;
Cls b = new;
ExtendCls ext = new;
`check_ne(a, b)
`check_ne(a, ext)
`check_ne(ext, a)
a = b;
`check_eq(a, b)
a = ext;
`check_eq(a, ext)
`check_eq(ext, a)
$write("*-* All Finished *-*\n");
$finish;
end