uimapkit 折线内存泄漏
我正在练习在地图上绘制折线。 我采用了在此处下载的示例代码。
此处是我在构建时收到内存警告的部分->分析
MKMapRect routeRect = MKMapRectMake(southWestPoint.x, southWestPoint.y, northEastPoint.x - southWestPoint.x, northEastPoint.y - southWestPoint.y);
// clear the memory allocated earlier for the points
free(pointArr);
调试器窗口提示错误
The left operand of '-' is a garbage value
嗯，我不明白。 为什么会出现这样的情况呢？
这是严重错误吗？
如何修复它？
谢谢。
I'm practicing drawing polyline on the Map.
I've adopted Sample code from download here.
Here is the part that I got memory warning when I do build->Analysis
MKMapRect routeRect = MKMapRectMake(southWestPoint.x, southWestPoint.y, northEastPoint.x - southWestPoint.x, northEastPoint.y - southWestPoint.y);
// clear the memory allocated earlier for the points
free(pointArr);
Debugger Window prompt error
The left operand of '-' is a garbage value
Uhm I don't get it.
Why is this happened?
Is this Critical Error?
How to fix it?
Thank you.
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变量
northEastPoint显然尚未初始化为任何内容。这意味着您的计算几乎肯定不会返回您希望的任何值。您可以通过将所有变量初始化为有意义的状态来修复它。The variable
northEastPointhas apparently not been initialized to anything. This means that your calculation will almost certainly not return whatever value you were hoping for. You fix it by initializing all your variables to a meaningful state.