bvt/bvt21.cc

   1 // This file is part of the ustl library, an STL implementation.
   2 //
   3 // Copyright (C) 2005 by Mike Sharov <msharov@users.sourceforge.net>
   4 // This file is free software, distributed under the MIT License.
   5 //
   6
   7 // Tests functions from uutility.h
   8 //
   9
  10 #include "stdtest.h"
  11
  12 template <typename T>
  13 void TestBswap (T v)
  14 {
  15     const T vsw (bswap(v));
  16 #if BYTE_ORDER == LITTLE_ENDIAN
  17     const T vbe (vsw), vle (v);
  18 #elif BYTE_ORDER == BIG_ENDIAN
  19     const T vbe (v), vle (vsw);
  20 #endif
  21     static const char ok[2][4] = { "bad", "ok" };
  22     cout << "bswap(" << v << ") = " << vsw << endl;
  23     cout << "le_to_native(" << v << ") = " << ok[le_to_native(vle) == v] << endl;
  24     cout << "native_to_le(" << v << ") = " << ok[native_to_le(v) == vle] << endl;
  25     cout << "be_to_native(" << v << ") = " << ok[be_to_native(vbe) == v] << endl;
  26     cout << "native_to_be(" << v << ") = " << ok[native_to_be(v) == vbe] << endl;
  27 }
  28
  29 void TestUtility (void)
  30 {
  31     cout << "DivRU(13,5) = " << DivRU(13,5) << endl;
  32     cout << "DivRU(15,5) = " << DivRU(15,5) << endl;
  33     cout << "DivRU(-12,5) = " << DivRU(-12,5) << endl;
  34     cout << endl;
  35     cout << "Align(5) = " << Align(5) << endl;
  36     cout << "Align(5,2) = " << Align(5,2) << endl;
  37     cout << "Align(17,7) = " << Align(17,7) << endl;
  38     cout << "Align(14,7) = " << Align(14,7) << endl;
  39     cout << endl;
  40     cout << "advance(42,0) = " << advance(42,0) << endl;
  41     cout << "advance(42,3) = " << advance(42,3) << endl;
  42     const void *cvp = (const void*) 0x1234;
  43     void* vp = (void*) 0x4321;
  44     cout << ios::hex;
  45     cout << "cvp = " << cvp << endl;
  46     cout << "vp = " << vp << endl;
  47     cout << "advance(cvp,5) = " << advance(cvp,5) << endl;
  48     cout << "advance(vp,4) = " << advance(vp,4) << endl;
  49     cout << "distance(cvp,vp) = " << distance(cvp,vp) << endl;
  50     cout << "abs_distance(vp,cvp) = " << abs_distance(vp,cvp) << endl;
  51     cout << ios::dec << endl;
  52     const int32_t c_Numbers[] = { 1, 2, 3, 4, 5 };
  53     const int32_t c_Empty[] = { };
  54     cout << "size_of_elements(3, c_Numbers) = " << size_of_elements(3, c_Numbers) << endl;
  55     cout << "VectorSize(c_Numbers[5]) = " << VectorSize(c_Numbers) << endl;
  56     cout << "VectorSize(c_Numbers[0]) = " << VectorSize(c_Empty) << endl;
  57     cout << endl;
  58     cout << "BitsInType(uint32_t) = " << BitsInType(uint32_t) << endl;
  59     cout << "BitsInType(int16_t) = " << BitsInType(int16_t) << endl;
  60     cout << "BitsInType(char) = " << BitsInType(char) << endl;
  61     cout << ios::hex << endl;
  62     cout << "BitMask(uint32_t,12) = " << BitMask(uint32_t,12) << endl;
  63     cout << "BitMask(uint16_t,1) = " << BitMask(uint16_t,1) << endl;
  64     cout << "BitMask(uint8_t,8) = " << BitMask(uint8_t,8) << endl;
  65     cout << "BitMask(uint16_t,0) = " << BitMask(uint16_t,0) << endl;
  66     cout << endl;
  67     uint16_t packed16 = 0xCDCD;
  68     pack_type (uint8_t(0x42), packed16);
  69     cout << "pack_type(uint8_t, uint16_t) = " << packed16 << endl;
  70     uint32_t packed32 = 0xCDCDCDCD;
  71     pack_type (uint8_t(0x42), packed32);
  72     cout << "pack_type(uint8_t, uint32_t) = " << packed32 << endl;
  73     packed32 = 0xCDCDCDCD;
  74     pack_type (uint16_t(0x4243), packed32);
  75     cout << "pack_type(uint16_t, uint32_t) = " << packed32 << endl;
  76     #if HAVE_INT64_T
  77         uint64_t packed64 = UINT64_C(0x123456789ABCDEF0);
  78         pack_type (uint8_t(0x42), packed64);
  79         cout << "pack_type(uint8_t, uint64_t) = " << packed64 << endl;
  80         packed64 = UINT64_C(0x123456789ABCDEF0);
  81         pack_type (uint32_t(0x42434445), packed64);
  82         cout << "pack_type(uint32_t, uint64_t) = " << packed64 << endl;
  83     #else
  84         cout << "No 64bit types available on this platform" << endl;
  85     #endif
  86     cout << endl;
  87     TestBswap (uint16_t (0x1234));
  88     TestBswap (uint32_t (0x12345678));
  89     #ifdef HAVE_INT64_T
  90         TestBswap (uint64_t (UINT64_C(0x123456789ABCDEF0)));
  91     #else
  92         cout << "No 64bit types available on this platform" << endl;
  93     #endif
  94     cout << ios::dec << endl;
  95     cout << "absv(12) = " << absv(12) << endl;
  96     cout << "absv(-12) = " << absv(-12) << endl;
  97     cout << "sign(12) = " << sign(12) << endl;
  98     cout << "sign(-12) = " << sign(-12) << endl;
  99     cout << "sign(0) = " << sign(0) << endl;
 100     cout << "min(3,4) = " << min(3,4) << endl;
 101     cout << "min(6U,1U) = " << min(6U,1U) << endl;
 102     cout << "max(-3,-6) = " << max(-3,-6) << endl;
 103     cout << "max(-3L,6L) = " << max(-3L,6L) << endl;
 104 }
 105
 106 StdBvtMain (TestUtility)
 107