我的应用程序出现 EXC_ARM_DA_ALIGN 崩溃。这是 Xcode 标记为“恶性”的代码。在模拟器上我没有这个崩溃,只有在设备上,所以我认为这是一个内存对齐问题。有谁知道如何修复此代码?非常感谢。
-(int) Save:(void*) pBuf {
int nNeedSize = sizeof(fType) + sizeof(sizeBrush) + sizeof(nBrushType) + sizeof(rcImage) + sizeof(count) + sizeof(data[0]) * count;
if (pBuf == nil)
return nNeedSize;
*(NSInteger*)pBuf = count; pBuf += sizeof(count);
*(BOOL*)pBuf = fType; pBuf += sizeof(fType);
(*(CGSize*)pBuf).width = sizeBrush.width;
(*(CGSize*)pBuf).height = sizeBrush.height;
pBuf += sizeof(sizeBrush);
*(NSInteger*)pBuf = nBrushType; pBuf += sizeof(nBrushType);
(*(CGRect*)pBuf).size.width = rcImage.size.width;
(*(CGRect*)pBuf).size.height = rcImage.size.height;
(*(CGRect*)pBuf).origin.x = rcImage.origin.x;
(*(CGRect*)pBuf).origin.y = rcImage.origin.y;
pBuf += sizeof(rcImage);
for (int i = 0; i < count; i++)
{
(*(CGPoint*)pBuf).x = data[i].x;
(*(CGPoint*)pBuf).y = data[i].y;
pBuf += sizeof(data[0]);
}
return nNeedSize;}
这是另一个标记为恶性的部分:
int i;
int nTotalSize = 0;
for (i = 0; i < m_Data.count; i++)
{
maskStroke* one = [m_Data objectAtIndex:i];
nTotalSize += [one Save:NULL];
}
unsigned char* buf = (unsigned char*)malloc(nTotalSize+100);
unsigned char* cur_ptr = buf;
for (i = 0; i < m_Data.count; i++)
{
maskStroke* one = [m_Data objectAtIndex:i];
cur_ptr += [one Save:cur_ptr];
}