int 和uint long和ulong区别

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int 和uint long和ulong区别
32bit

1. int range: -2,147,483,648 to 2,147,483,647
   
2. uint range: 0 to 4,294,967,295

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64bit

1. long range: –9,223,372,036,854,775,808 to 9,223,372,036,854,775,807
   
2. ulong range: 0 to 18,446,744,073,709,551,615

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osx terminal下运行报错

error: unknown type name 'uint'; did you mean 'int'?

解决方法:

1. typedef unsigned char           unchar;
   
2. typedef unsigned short          ushort;
   
3. typedef unsigned int            uint;
   
4. typedef unsigned long           ulong;

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