Setting repeatCount to 1e100f gives a warning

From Apple Documentation:

Setting the repeatCount to 1e100f will cause the animation to repeat until it is removed from the layer.

Here's my code:

CABasicAnimation *flicker = [CABasicAnimation animationWithKeyPath:@"opacity"];
flicker.repeatCount = 1e100f;

X开发者_运维百科code gives a warning:

Semantic Issue: Magnitude of floating-point constant too large for type 'float'; maximum is 1.7014116E+38

Something I'm doing wrong?

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Try using HUGE_VALF (which I think is 1e50f, but use the constant) instead. Looking up repeatCount tells us:

Setting this property to HUGE_VALF will cause the animation to repeat forever.

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change flicker.repeatCount = 1e100f; to flicker.repeatCount = 1e100;