What is the dynamic type of the object allocated by malloc?

Question

The C++ standard refers to the term "dynamic type" (and the C standard refers to "effective type" in the similar context), for example

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Answer 1

In C, the effective type is only relevant when you access an object. Then in is determined by

• the declaration type, if it has one
• the type of another object of which it is a copy (eg. memcpy)
• the type of the lvalue through which it is accessed, e.g if a void* is converted to another pointer type (e.g int*), which then is dereferenced.

The latter is usually what happens with malloced objects, if you assign the return value of malloc to a pointer type.