void *m61_realloc(void *ptr, size_t sz, const char *file, int line) {
(void) file, (void) line; // avoid uninitialized variable warnings
void *new_ptr = NULL;
if (sz != 0)
new_ptr = m61_malloc(sz,file,line);
if (ptr != NULL && new_ptr != NULL) {
metadata *meta_ptr=getMetadata(ptr);
size_t old_sz = meta_ptr->sz;
if (old_sz < sz)
memcpy(new_ptr, ptr, old_sz);
else
memcpy(new_ptr, ptr, sz);
}
m61_free(ptr,file, line);
return new_ptr;
}
void* m61_realloc(void* ptr, size_t sz, const char* file, int line) {
void *new_ptr = NULL;
if (sz)
new_ptr = m61_malloc(sz, file, line);
if (ptr && new_ptr) {
// Copy the data from `ptr` into `new_ptr`.
// To do that, we must figure out the size of allocation `ptr`.
// Your code here (to fix test012).
size_t old_sz = ((struct header *) ptr - 1)->alloc_size;
if (old_sz < sz)
memcpy(new_ptr,ptr,old_sz);
else
memcpy(new_ptr,ptr,sz);
}
m61_free(ptr, file, line);
return new_ptr;
}
void* m61_realloc(void* ptr, size_t sz, const char* file, int line) {
//void* new_ptr = NULL;
m61_metadata* new_ptr = NULL;
if (sz)
new_ptr = m61_malloc(sz, file, line);
if (ptr && new_ptr) {
// Copy the data from `ptr` into `new_ptr`.
// To do that, we must figure out the size of allocation `ptr`.
// Your code here (to fix test012).
m61_metadata *itismeta = ptr;
m61_metadata *meta = itismeta - sizeof(m61_metadata);
m61_metadata new_meta = { (meta->size) };
new_ptr -= sizeof(m61_metadata);
memcpy(new_ptr,&new_meta,sizeof(m61_metadata));
new_ptr += sizeof(m61_metadata);
}
m61_free(ptr, file, line);
return new_ptr;
}
