| description | title | ms.date | f1_keywords | helpviewer_keywords | ms.assetid | ||
|---|---|---|---|---|---|---|---|
Learn more about: Compiler Warning (level 4) C4610 |
Compiler Warning (level 4) C4610 |
11/04/2016 |
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23c1a16c-9ca9-4bf6-9911-a72b785560c2 |
object 'class' can never be instantiated - user-defined constructor required
The class has no user-defined or default constructors. No instantiation is performed. The following sample generates C4610:
// C4610.cpp
// compile with: /W4
struct A {
int &j;
A& A::operator=( const A& );
}; // C4610
/* use this structure definition to resolve the warning
struct B {
int &k;
B(int i = 0) : k(i) {
}
B& B::operator=( const B& );
} b;
*/
int main() {
}