User:7y2piphone6b

the difference between using CGFloat and float<br><br>The same approach is used for NSInteger and NSUInteger as well.<br><br>These types were introduced to make it easier to write code that works on both 32 bit and 64 bit without modification. However, if all you need is float precision within your own code, you can still use float if you like  it will reduce your memory footprint somewhat. Same goes for integer values.<br><br>I suggest you invest the modest time required to make your app 64 bit clean and try running it as such, since most Macs now have 64 bit CPUs and Snow Leopard is fully 64 bit, including the kernel and user applications. Apple's 64 bit Transition Guide for Cocoa is a useful resource.<br><br>I didn say NEVER use a primitive directly. There are times that straight primitives can be problematic,ipad mini leather case, such as if a variable may conceivably be used to store data which could overflow, such as on 64 bit. In general, using architecture dependent typedefs is safer, in that code is less likely to explode on a different architecture. However, sometimes using a 32 bit type can be completely safe and save you memory. The size of primitives may be less of an issue in a JVM, but Obj C and C are compiled, and mixing 32 and 64 bit libraries and code is indeed problematic.

the difference between using CGFloat and float<br><br>The same approach is used for NSInteger and NSUInteger as well.<br><br>These types were introduced to make it easier to write code that works on both 32 bit and 64 bit without modification. However, if all you need is float precision within your own code, you can still use float if you like  it will reduce your memory footprint somewhat. Same goes for integer values.<br><br>I suggest you invest the modest time required to make your app 64 bit clean and try running it as such, since most Macs now have 64 bit CPUs and Snow Leopard is fully 64 bit, including the kernel and user applications. Apple's 64 bit Transition Guide for Cocoa is a useful resource.<br><br>I didn say NEVER use a primitive directly. There are times that straight primitives can be problematic,ipad mini leather case, such as if a variable may conceivably be used to store data which could overflow, such as on 64 bit. In general, using architecture dependent typedefs is safer, in that code is less likely to explode on a different architecture. However, sometimes using a 32 bit type can be completely safe and save you memory. The size of primitives may be less of an issue in a JVM, but Obj C and C are compiled, and mixing 32 and 64 bit libraries and code is indeed problematic.