/* This tests the rotate patterns that some machines support. */ #include #ifndef CHAR_BIT #define CHAR_BIT 8 #endif #define ROR(a,b) (((a) >> (b)) | ((a) << ((sizeof (a) * CHAR_BIT) - (b)))) #define ROL(a,b) (((a) << (b)) | ((a) >> ((sizeof (a) * CHAR_BIT) - (b)))) #define CHAR_VALUE ((unsigned char)0x1234U) #define SHORT_VALUE ((unsigned short)0x1234U) #define INT_VALUE 0x1234U #define LONG_VALUE 0x12345678LU #define LL_VALUE 0x12345678abcdef0LLU #define SHIFT1 4 #define SHIFT2 ((sizeof (long long) * CHAR_BIT) - SHIFT1) unsigned char uc = CHAR_VALUE; unsigned short us = SHORT_VALUE; unsigned int ui = INT_VALUE; unsigned long ul = LONG_VALUE; unsigned long long ull = LL_VALUE; int shift1 = SHIFT1; int shift2 = SHIFT2; main () { if (ROR (uc, shift1) != ROR (CHAR_VALUE, SHIFT1)) abort (); if (ROR (uc, SHIFT1) != ROR (CHAR_VALUE, SHIFT1)) abort (); if (ROR (us, shift1) != ROR (SHORT_VALUE, SHIFT1)) abort (); if (ROR (us, SHIFT1) != ROR (SHORT_VALUE, SHIFT1)) abort (); if (ROR (ui, shift1) != ROR (INT_VALUE, SHIFT1)) abort (); if (ROR (ui, SHIFT1) != ROR (INT_VALUE, SHIFT1)) abort (); if (ROR (ul, shift1) != ROR (LONG_VALUE, SHIFT1)) abort (); if (ROR (ul, SHIFT1) != ROR (LONG_VALUE, SHIFT1)) abort (); if (ROR (ull, shift1) != ROR (LL_VALUE, SHIFT1)) abort (); if (ROR (ull, SHIFT1) != ROR (LL_VALUE, SHIFT1)) abort (); if (ROR (ull, shift2) != ROR (LL_VALUE, SHIFT2)) abort (); if (ROR (ull, SHIFT2) != ROR (LL_VALUE, SHIFT2)) abort (); if (ROL (uc, shift1) != ROL (CHAR_VALUE, SHIFT1)) abort (); if (ROL (uc, SHIFT1) != ROL (CHAR_VALUE, SHIFT1)) abort (); if (ROL (us, shift1) != ROL (SHORT_VALUE, SHIFT1)) abort (); if (ROL (us, SHIFT1) != ROL (SHORT_VALUE, SHIFT1)) abort (); if (ROL (ui, shift1) != ROL (INT_VALUE, SHIFT1)) abort (); if (ROL (ui, SHIFT1) != ROL (INT_VALUE, SHIFT1)) abort (); if (ROL (ul, shift1) != ROL (LONG_VALUE, SHIFT1)) abort (); if (ROL (ul, SHIFT1) != ROL (LONG_VALUE, SHIFT1)) abort (); if (ROL (ull, shift1) != ROL (LL_VALUE, SHIFT1)) abort (); if (ROL (ull, SHIFT1) != ROL (LL_VALUE, SHIFT1)) abort (); if (ROL (ull, shift2) != ROL (LL_VALUE, SHIFT2)) abort (); if (ROL (ull, SHIFT2) != ROL (LL_VALUE, SHIFT2)) abort (); exit (0); }