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Data types and portability Not only do LIAR functions need to interface to different IAS, they must also be portable across different platforms. C's int type is a very rubbery type, on some systems it is two bytes long and on others it is 4 bytes long. This makes it a nuisance for portability. Hence to capture the importance of integer types the LIAR has a standard header called liarlmts.h which deal exculsively with the range of data types. It differs from the standard C header files limits.h and float.h in that it includes definitions where the size of the data is explicity defined in the definition itself. The LIAR type definitions for a typical 32bit workstation are given in Table 2 along with their max and min values. For example: the SEED_TYPE maximum is SEED_TYPE_MAX and its minimum is SEED_TYPE_MIN.   TYPE DEFAULT TYPE_MAX TYPE_MIN PIX_TYPE unsigned char 0xFF 0 SEED_TYPE int 0x7FFFFFFF -0x80000000 SHRT_TYPE short int 0x7FFF -0x8000 USHRT_TYPE unsigned short 0xFFFF 0 INT_TYPE int 0x7FFFFFFF -0x80000000 UINT_TYPE unsigned 0xFFFFFFFF 0 LONG_TYPE long 0x7FFFFFFF -0x80000000 ULONG_TYPE unsigned long 0xFFFFFFFF 0 FLT_TYPE float 3.40282347e+38 2.93873588e-39 DBL_TYPE double 1.7976931348623157e+308 2.93873587705571880e-308 INT1_TYPE char 127 -127 UINT1_TYPE unsigned char 0xFF 0 INT2_TYPE short int 0x7FFF -0x8000 UINT2_TYPE unsigned short 0xFFFF 0 INT4_TYPE int 0x7FFFFFFF -0x80000000 UINT4_TYPE unsigned 0xFFFFFFFF 0

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