Do we intend to use exception types from the standard library?

Question

The C ++ Standard Library defines some types of exceptions, such as std::exception, std::bad_allocand std::logic_error. Do we suppose or allow them to be used in our own code in general?

Take a concrete example. We define a type Arraythat contains a fixed number intand throws a std::out_of_rangeout of range access. It has a member function Array::operator[](size_t i), which is defined as follows:

int& Array::operator[](size_t i) {
    if (i >= size)
        throw std::out_of_range({ "out of range" });

    return array[i];
}

I think that we, of course, can use them (the standard does not actually prohibit it), but it looks like a protracted out of context. IMO, it looks like a constant

const unsigned int percentFactor = 100;

which is used to allocate memory:

char* ptr = new char[percentFactor];

percentFactor float/double, . 100 char s, , LOC . . std::out_of_range , , , .

, //API ?

Answer 1

.

std::out_of_range .

<stdexcept>, .

Edit:

...

• a std::logic_error ( - ) , ( - ).

• a std::runtime_error ( ) , , (, - - ).