I found a bug on CCLabelTTF.
When the CCLabelTTF is created with no limit on height as follows,
CCLabelTTF::labelWithString(headword.c_str(), CCSizeMake(aMaxWidth,0), CCTextAlignmentLeft, HW_FONT,HW_SIZE);
Label will crashes on iOS.
The bug was on the CCImage_iOS.mm
The code around line 380 looks like this.
if (0 >= pInfo->height)
canvasSize = textSize;
pInfo->height = (size_t) textSize.height;
// This line needs to be added
pInfo->width = (size_t) textSize.width;
textRect = CGRectMake(0, 0, textSize.width, textSize.height);
I am not sure there is bug on other platform.
Please reflect this on the later release.