void* unity_realloc(void * oldMem, size_t size)
{
Guard* guard = (Guard*)oldMem;
// char* memAsChar = (char*)oldMem;
void* newMem;
if (oldMem == 0)
return unity_malloc(size);
guard--;
if (isOverrun(oldMem))
{
release_memory(oldMem);
TEST_FAIL_MESSAGE("Buffer overrun detected during realloc()");
}
if (size == 0)
{
release_memory(oldMem);
return 0;
}
if (guard->size >= size)
return oldMem;
newMem = unity_malloc(size);
memcpy(newMem, oldMem, guard->size);
unity_free(oldMem);
return newMem;
}
void* unity_realloc(void * oldMem, size_t size)
{
Guard* guard = (Guard*)oldMem;
// char* memAsChar = (char*)oldMem;
void* newMem;
if (oldMem == 0)
return unity_malloc(size);
guard--;
if (isOverrun(oldMem))
{
release_memory(oldMem);
/*DX_PATCH for jumless version*/
UnityPrint("Buffer overrun detected during realloc()", unity_p);
return 0;
}
if (size == 0)
{
release_memory(oldMem);
return 0;
}
if (guard->size >= size)
return oldMem;
newMem = unity_malloc(size);
memcpy(newMem, oldMem, guard->size);
unity_free(oldMem);
return newMem;
}
void* unity_calloc(size_t num, size_t size)
{
void* mem = unity_malloc(num * size);
if (mem == NULL) return NULL;
memset(mem, 0, num * size);
return mem;
}
void* unity_realloc(void* oldMem, size_t size)
{
Guard* guard = (Guard*)oldMem;
void* newMem;
if (oldMem == NULL) return unity_malloc(size);
guard--;
if (isOverrun(oldMem))
{
release_memory(oldMem);
UNITY_TEST_FAIL(Unity.CurrentTestLineNumber, "Buffer overrun detected during realloc()");
}
if (size == 0)
{
release_memory(oldMem);
return NULL;
}
if (guard->size >= size) return oldMem;
#ifdef UNITY_EXCLUDE_STDLIB_MALLOC /* Optimization if memory is expandable */
if (oldMem == unity_heap + heap_index - guard->size - sizeof(end) &&
heap_index + size - guard->size <= UNITY_INTERNAL_HEAP_SIZE_BYTES)
{
release_memory(oldMem); /* Not thread-safe, like unity_heap generally */
return unity_malloc(size); /* No memcpy since data is in place */
}
#endif
newMem = unity_malloc(size);
if (newMem == NULL) return NULL; /* Do not release old memory */
memcpy(newMem, oldMem, guard->size);
release_memory(oldMem);
return newMem;
}