Original Post
object a;
object b;
b = -a;
should the contents of a be changed, or should it stay the same but pass the changed content to b instead?
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should operator - modifies the object?
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It should not modify the object, merely return the value of the object negated.
ah ok. thanks.
It is generally expected that unary minus won''t modify the object. As a rule, imagine how it would behave with ints:
int a = 3;
int b = -a;
std::cout << a << std::endl; // Please tell me you expect "3"
int a = 3;
int b = -a;
std::cout << a << std::endl; // Please tell me you expect "3"
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