Why is there an implicit type conversion from pointers to bool in C++?

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清酒与你
清酒与你 2020-11-30 13:28

Consider the class foo with two constructors defined like this:

class foo
{
public:
    foo(const std::string& filename) {std::cout <<         


        
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  •  一个人的身影
    2020-11-30 14:13

    You're confusing two issues. One is that "blah" can be implicitly converted to a string and the other is that const char* can be implicitly converted into a boolean. It's very logical to see the compiler go to the implicit conversion which minimizes the total amount of conversions necessary.

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