EXC_ARM_DA_ALIGN崩溃(EXC_ARM_DA_ALIGN crash)

 我的应用程序中出现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，只能在设备上，所以我认为这是一个内存对齐问题。 有没有人知道如何解决这个问题？ 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;}
 
 这是另一个被标记为恶性的部分： 
 
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];
}

I'm having a EXC_ARM_DA_ALIGN crash in my application. Here's the code that Xcode flag as "malignant". On the simulator I don't have this crash, only on device, so I think it is a memory alignment problem. Is there anyone who knows how to fix this code? Thank you so much.
 
-(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;}
 
And here's another part flagged as malignant:
 
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];
}

原文：https://stackoverflow.com/questions/15925287