Function esp_idf_svc::sys::heap_caps_get_allocated_size

pub unsafe extern "C" fn heap_caps_get_allocated_size(
    ptr: *mut c_void,
) -> usize

@brief Return the size that a particular pointer was allocated with.

@param ptr Pointer to currently allocated heap memory. Must be a pointer value previously returned by heap_caps_malloc, malloc, calloc, etc. and not yet freed.

@note The app will crash with an assertion failure if the pointer is not valid.

@return Size of the memory allocated at this block.