好吧问答库 > iOS-CGFloat和float的区别

iOS-CGFloat和float的区别

2025年04月06日 06:22
有1个网友回答
网友（1）：

#if defined(__LP64__) && __LP64__

# define CGFLOAT_TYPE double

# define CGFLOAT_IS_DOUBLE 1

# define CGFLOAT_MIN DBL_MIN

# define CGFLOAT_MAX DBL_MAX

#else

# define CGFLOAT_TYPE float

# define CGFLOAT_IS_DOUBLE 0

# define CGFLOAT_MIN FLT_MIN

# define CGFLOAT_MAX FLT_MAX

#endif

/* Definition of the `CGFloat' type and `CGFLOAT_DEFINED'. */

typedef CGFLOAT_TYPE CGFloat;

CGFloat在64位平台下 就是double了。

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