// Stuff used to implement the Integer class. // WARNING: Its internals WILL change! /* Sizes of shifts for multiple-precision arithmetic. These should not be changed unless Integer representation as unsigned shorts is changed in the implementation files. */ #define I_SHIFT (sizeof(short) * CHAR_BIT) #define I_RADIX ((unsigned long)(1L << I_SHIFT)) #define I_MAXNUM ((unsigned long)((I_RADIX - 1))) #define I_MINNUM ((unsigned long)(I_RADIX >> 1)) #define I_POSITIVE 1 #define I_NEGATIVE 0 /* All routines assume SHORT_PER_LONG > 1 */ #define SHORT_PER_LONG ((unsigned)(((sizeof(long) + sizeof(short) - 1) / sizeof(short)))) #define CHAR_PER_LONG ((unsigned)sizeof(long)) /* minimum and maximum sizes for an IntRep */ #define MINIntRep_SIZE 16 #define MAXIntRep_SIZE I_MAXNUM #ifndef MALLOC_MIN_OVERHEAD #define MALLOC_MIN_OVERHEAD 4 #endif