| 1 | /* |
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| 2 | * Copyright 2008-2009 Katholieke Universiteit Leuven |
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| 3 | * |
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| 4 | * Use of this software is governed by the MIT license |
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| 5 | * |
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| 6 | * Written by Sven Verdoolaege, K.U.Leuven, Departement |
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| 7 | * Computerwetenschappen, Celestijnenlaan 200A, B-3001 Leuven, Belgium |
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| 8 | */ |
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| 9 | |
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| 10 | #include <isl_int.h> |
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| 11 | |
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| 12 | uint32_t isl_gmp_hash(mpz_t v, uint32_t hash) |
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| 13 | { |
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| 14 | int sa = v[0]._mp_size; |
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| 15 | int abs_sa = sa < 0 ? -sa : sa; |
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| 16 | unsigned char *data = (unsigned char *)v[0]._mp_d; |
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| 17 | unsigned char *end = data + abs_sa * sizeof(v[0]._mp_d[0]); |
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| 18 | |
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| 19 | if (sa < 0) |
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| 20 | isl_hash_byte(hash, 0xFF); |
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| 21 | for (; data < end; ++data) |
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| 22 | isl_hash_byte(hash, *data); |
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| 23 | return hash; |
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| 24 | } |
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| 25 | |
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