^**Data Type**^**LP32**^**ILP32**^**ILP64**^**LLP64**^**LP**^
|char|8|8|8|8|8|
|short|16|16|16|16|16|
|int32|32|32|32|32|32|	  	 
|int|16|32|64|32|32|
|long|32|32|64|32|64|
|long long (int64)|64|64|64|64|64| 	 
|pointer|32|32|64|64|64|

    * x86_32 = ILP32
    * x86_64 = ILP64


for a closer look click [[http://www.unix.org/whitepapers/64bit.html|here]]


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