// New memory segment could not be put at the end of this->memory_,
// so cancel this one and try to relocate everything and copy data
munmap(new_memory, new_bytesize - old_bytesize);
new_memory =
mmap(nullptr, new_bytesize, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS | MAP_POPULATE, -1, 0);
// New memory segment could not be put at the end of this->memory_,
// so cancel this one and try to relocate everything and copy data
munmap(new_memory, new_bytesize - old_bytesize);
new_memory =
mmap(nullptr, new_bytesize, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS | MAP_POPULATE, -1, 0);