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74 lines
1.2 KiB
C
74 lines
1.2 KiB
C
#ifndef BASICTYPES_H
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#define BASICTYPES_H
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#include "common.h"
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//
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// pick types of particular sizes
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//
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#if !defined(TYPE_OF_SIZE_1)
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# if SIZEOF_CHAR == 1
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# define TYPE_OF_SIZE_1 char
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# endif
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#endif
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#if !defined(TYPE_OF_SIZE_2)
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# if SIZEOF_INT == 2
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# define TYPE_OF_SIZE_2 int
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# else
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# define TYPE_OF_SIZE_2 short
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# endif
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#endif
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#if !defined(TYPE_OF_SIZE_4)
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# if SIZEOF_INT == 4
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# define TYPE_OF_SIZE_4 int
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# else
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# define TYPE_OF_SIZE_4 long
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# endif
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#endif
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//
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// verify existence of required types
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//
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#if !defined(TYPE_OF_SIZE_1)
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# error No 1 byte integer type
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#endif
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#if !defined(TYPE_OF_SIZE_2)
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# error No 2 byte integer type
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#endif
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#if !defined(TYPE_OF_SIZE_4)
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# error No 4 byte integer type
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#endif
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//
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// make typedefs
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//
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// except for SInt8 and UInt8 these types are only guaranteed to be
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// at least as big as indicated (in bits). that is, they may be
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// larger than indicated.
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//
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typedef signed TYPE_OF_SIZE_1 SInt8;
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typedef signed TYPE_OF_SIZE_2 SInt16;
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typedef signed TYPE_OF_SIZE_4 SInt32;
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typedef unsigned TYPE_OF_SIZE_1 UInt8;
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typedef unsigned TYPE_OF_SIZE_2 UInt16;
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typedef unsigned TYPE_OF_SIZE_4 UInt32;
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//
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// clean up
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//
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#undef TYPE_OF_SIZE_1
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#undef TYPE_OF_SIZE_2
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#undef TYPE_OF_SIZE_4
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#endif
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