Method reallocate

src/misc/memory_model.cpp:190–211

    }

    char * MemoryModel::reallocate ( char * ptr, uint64_t size, uint64_t nsize ) {
        if ( !ptr ) return allocate(nsize);
        size = (size + alignMask) & ~alignMask;
        nsize = (nsize + alignMask) & ~alignMask;
        char * nptr = allocate(nsize);
        DAS_VERIFYF(nptr,"out of memory?");
        memcpy ( nptr, ptr, das::min(size,nsize) );
#if DAS_TRACK_ALLOCATIONS
        if ( trackAllocations ) {
            auto pAt = bigStuffAt.find(ptr);
            if ( pAt != bigStuffAt.end() ) {
                bigStuffAt[nptr] = pAt->second;
            }
            auto pCm = bigStuffComment.find(ptr);
            if ( pCm != bigStuffComment.end() ) {
                bigStuffComment[nptr] = pCm->second;
            }
        }
#endif
        free(ptr, size);
        return nptr;
    }

    void MemoryModel::reset() {
        for ( auto & itb : bigStuff ) {