| 1 | /*
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| 2 | largeint.c
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| 3 |
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| 4 | Large (64 bits) integer arithmetics library
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| 5 |
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| 6 | Written by Anders Norlander <anorland@hem2.passagen.se>
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| 7 |
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| 8 | This file is part of a free library for the Win32 API.
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| 9 |
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| 10 | This library is distributed in the hope that it will be useful,
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| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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| 13 |
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| 14 | */
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| 15 |
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| 16 | #define __COMPILING_LARGEINT
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| 17 |
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| 18 | #include <largeint.h>
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| 19 |
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| 20 | __int64 WINAPI
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| 21 | LargeIntegerAdd (__int64 i1, __int64 i2)
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| 22 | {
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| 23 | return i1 + i2;
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| 24 | }
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| 25 |
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| 26 | __int64 WINAPI
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| 27 | LargeIntegerSubtract (__int64 i1, __int64 i2)
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| 28 | {
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| 29 | return i1 - i2;
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| 30 | }
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| 31 |
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| 32 | __int64 WINAPI
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| 33 | LargeIntegerArithmeticShift (__int64 i, int n)
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| 34 | {
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| 35 | return i >> n;
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| 36 | }
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| 37 |
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| 38 | __int64 WINAPI
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| 39 | LargeIntegerShiftLeft (__int64 i, int n)
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| 40 | {
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| 41 | return i << n;
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| 42 | }
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| 43 |
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| 44 | __int64 WINAPI
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| 45 | LargeIntegerShiftRight (__int64 i, int n)
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| 46 | {
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| 47 | return i >> n;
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| 48 | }
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| 49 |
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| 50 | __int64 WINAPI
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| 51 | LargeIntegerNegate (__int64 i)
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| 52 | {
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| 53 | return -i;
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| 54 | }
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| 55 |
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| 56 | __int64 WINAPI
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| 57 | ConvertLongToLargeInteger (LONG l)
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| 58 | {
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| 59 | return (__int64) l;
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| 60 | }
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| 61 |
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| 62 | __int64 WINAPI
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| 63 | ConvertUlongToLargeInteger (ULONG ul)
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| 64 | {
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| 65 | return _toi(_toui(ul));
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| 66 | }
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| 67 |
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| 68 | __int64 WINAPI
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| 69 | EnlargedIntegerMultiply (LONG l1, LONG l2)
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| 70 | {
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| 71 | return _toi(l1) * _toi(l2);
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| 72 | }
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| 73 |
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| 74 | __int64 WINAPI
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| 75 | EnlargedUnsignedMultiply (ULONG ul1, ULONG ul2)
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| 76 | {
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| 77 | return _toi(_toui(ul1) * _toui(ul2));
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| 78 | }
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| 79 |
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| 80 | __int64 WINAPI
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| 81 | ExtendedIntegerMultiply (__int64 i, LONG l)
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| 82 | {
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| 83 | return i * _toi(l);
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| 84 | }
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| 85 |
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| 86 | __int64 WINAPI
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| 87 | LargeIntegerMultiply (__int64 i1, __int64 i2)
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| 88 | {
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| 89 | return i1 * i2;
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| 90 | }
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| 91 |
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| 92 | __int64 WINAPI LargeIntegerDivide (__int64 i1, __int64 i2, __int64 *remainder)
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| 93 | {
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| 94 | if (remainder)
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| 95 | *remainder = i1 % i2;
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| 96 | return i1 / i2;
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| 97 | }
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| 98 |
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| 99 | ULONG WINAPI
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| 100 | EnlargedUnsignedDivide (unsigned __int64 i1, ULONG i2, PULONG remainder)
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| 101 | {
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| 102 | if (remainder)
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| 103 | *remainder = i1 % _toi(i2);
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| 104 | return i1 / _toi(i2);
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| 105 | }
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| 106 | __int64 WINAPI
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| 107 | ExtendedLargeIntegerDivide (__int64 i1, ULONG i2, PULONG remainder)
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| 108 | {
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| 109 | if (remainder)
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| 110 | *remainder = i1 % _toi(i2);
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| 111 | return i1 / _toi(i2);
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| 112 | }
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| 113 |
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| 114 | /* FIXME: what is this function supposed to do? */
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| 115 | __int64 WINAPI ExtendedMagicDivide (__int64 i1, __int64 i2, int n)
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| 116 | {
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| 117 | return 0;
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| 118 | }
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