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Hex Rays decompiler assigns weird looking data types to variables, e.g. __int64. How do I get to know what all are the built-in data types available in IDA?

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The C types in IDA Pro seem to ressemble the Visual C++ syntax.

Read an article written by Hex-Rays https://www.hex-rays.com/products/ida/support/idadoc/1361.shtml

The primitive types that you must know: bool, char, __int8, __int16, __int16, __int32, int, __int64, __int128

you add a keyword 'unsigned' before in the beginning to make the value unsigned.

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    And the <defs.h> header file from the hexrays sdk defines those types, so you can (with some luck) re-compile the output of hexrays. – Willem Hengeveld Feb 12 '17 at 20:42

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