Why a function with Bool argument accepts String?

Question

I have a function which accepts an bool as an argument:

void func(bool a)
{
    doing something;
}

But when I'm calling the function and passed string to it:

func("false");

Actually it should accept only.

func(false);

It accepts string without any error.

why?

Answer 1

Literal string is a char pointer, and pointer will be implicitly converted to bool.

• Null pointer -> false
• Non-null pointer -> true

In this case, the func will receive a true value from the non-null "false" string , which is const char* type.

You may need an interpreter function to able to read "false", "0", "no", etc from keyboard typing and convert to bool false which the program can understand.