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670 lines
17 KiB
C
670 lines
17 KiB
C
/*
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* Copyright 2015 INRIA Paris-Rocquencourt
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*
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* Use of this software is governed by the MIT license
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*
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* Written by Michael Kruse, INRIA Paris-Rocquencourt,
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* Domaine de Voluceau, Rocquenqourt, B.P. 105,
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* 78153 Le Chesnay Cedex France
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*/
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#include <assert.h>
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#include <stdio.h>
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#include <isl_int.h>
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#define ARRAY_SIZE(array) (sizeof(array)/sizeof(*array))
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#ifdef USE_SMALL_INT_OPT
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/* Test whether small and big representation of the same number have the same
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* hash.
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*/
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static void int_test_hash(isl_int val)
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{
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uint32_t demotedhash, promotedhash;
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isl_int demoted, promoted;
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isl_int_init(demoted);
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isl_int_set(demoted, val);
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isl_int_init(promoted);
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isl_int_set(promoted, val);
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isl_sioimath_try_demote(demoted);
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isl_sioimath_promote(promoted);
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assert(isl_int_eq(demoted, promoted));
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demotedhash = isl_int_hash(demoted, 0);
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promotedhash = isl_int_hash(promoted, 0);
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assert(demotedhash == promotedhash);
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isl_int_clear(demoted);
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isl_int_clear(promoted);
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}
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struct {
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void (*fn)(isl_int);
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char *val;
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} int_single_value_tests[] = {
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{ &int_test_hash, "0" },
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{ &int_test_hash, "1" },
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{ &int_test_hash, "-1" },
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{ &int_test_hash, "23" },
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{ &int_test_hash, "-23" },
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{ &int_test_hash, "107" },
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{ &int_test_hash, "32768" },
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{ &int_test_hash, "2147483647" },
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{ &int_test_hash, "-2147483647" },
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{ &int_test_hash, "2147483648" },
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{ &int_test_hash, "-2147483648" },
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};
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static void int_test_single_value()
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{
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int i;
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for (i = 0; i < ARRAY_SIZE(int_single_value_tests); i += 1) {
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isl_int val;
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isl_int_init(val);
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isl_int_read(val, int_single_value_tests[i].val);
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(*int_single_value_tests[i].fn)(val);
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isl_int_clear(val);
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}
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}
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static void invoke_alternate_representations_2args(char *arg1, char *arg2,
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void (*fn)(isl_int, isl_int))
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{
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int j;
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isl_int int1, int2;
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isl_int_init(int1);
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isl_int_init(int2);
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for (j = 0; j < 4; ++j) {
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isl_int_read(int1, arg1);
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isl_int_read(int2, arg2);
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if (j & 1)
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isl_sioimath_promote(int1);
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else
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isl_sioimath_try_demote(int1);
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if (j & 2)
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isl_sioimath_promote(int2);
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else
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isl_sioimath_try_demote(int2);
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(*fn)(int1, int2);
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}
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isl_int_clear(int1);
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isl_int_clear(int2);
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}
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static void invoke_alternate_representations_3args(char *arg1, char *arg2,
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char *arg3, void (*fn)(isl_int, isl_int, isl_int))
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{
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int j;
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isl_int int1, int2, int3;
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isl_int_init(int1);
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isl_int_init(int2);
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isl_int_init(int3);
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for (j = 0; j < 8; ++j) {
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isl_int_read(int1, arg1);
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isl_int_read(int2, arg2);
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isl_int_read(int3, arg3);
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if (j & 1)
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isl_sioimath_promote(int1);
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else
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isl_sioimath_try_demote(int1);
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if (j & 2)
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isl_sioimath_promote(int2);
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else
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isl_sioimath_try_demote(int2);
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if (j & 4)
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isl_sioimath_promote(int3);
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else
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isl_sioimath_try_demote(int3);
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(*fn)(int1, int2, int3);
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}
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isl_int_clear(int1);
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isl_int_clear(int2);
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isl_int_clear(int3);
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}
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#else /* USE_SMALL_INT_OPT */
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static void int_test_single_value()
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{
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}
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static void invoke_alternate_representations_2args(char *arg1, char *arg2,
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void (*fn)(isl_int, isl_int))
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{
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isl_int int1, int2;
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isl_int_init(int1);
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isl_int_init(int2);
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isl_int_read(int1, arg1);
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isl_int_read(int2, arg2);
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(*fn)(int1, int2);
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isl_int_clear(int1);
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isl_int_clear(int2);
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}
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static void invoke_alternate_representations_3args(char *arg1, char *arg2,
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char *arg3, void (*fn)(isl_int, isl_int, isl_int))
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{
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isl_int int1, int2, int3;
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isl_int_init(int1);
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isl_int_init(int2);
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isl_int_init(int3);
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isl_int_read(int1, arg1);
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isl_int_read(int2, arg2);
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isl_int_read(int3, arg3);
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(*fn)(int1, int2, int3);
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isl_int_clear(int1);
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isl_int_clear(int2);
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isl_int_clear(int3);
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}
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#endif /* USE_SMALL_INT_OPT */
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static void int_test_neg(isl_int expected, isl_int arg)
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{
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isl_int result;
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isl_int_init(result);
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isl_int_neg(result, arg);
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assert(isl_int_eq(result, expected));
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isl_int_neg(result, expected);
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assert(isl_int_eq(result, arg));
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isl_int_clear(result);
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}
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static void int_test_abs(isl_int expected, isl_int arg)
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{
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isl_int result;
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isl_int_init(result);
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isl_int_abs(result, arg);
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assert(isl_int_eq(result, expected));
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isl_int_clear(result);
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}
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struct {
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void (*fn)(isl_int, isl_int);
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char *expected, *arg;
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} int_unary_tests[] = {
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{ &int_test_neg, "0", "0" },
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{ &int_test_neg, "-1", "1" },
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{ &int_test_neg, "-2147483647", "2147483647" },
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{ &int_test_neg, "-2147483648", "2147483648" },
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{ &int_test_neg, "-9223372036854775807", "9223372036854775807" },
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{ &int_test_neg, "-9223372036854775808", "9223372036854775808" },
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{ &int_test_abs, "0", "0" },
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{ &int_test_abs, "1", "1" },
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{ &int_test_abs, "1", "-1" },
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{ &int_test_abs, "2147483647", "2147483647" },
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{ &int_test_abs, "2147483648", "-2147483648" },
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{ &int_test_abs, "9223372036854775807", "9223372036854775807" },
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{ &int_test_abs, "9223372036854775808", "-9223372036854775808" },
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};
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static void int_test_divexact(isl_int expected, isl_int lhs, isl_int rhs)
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{
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isl_int result;
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unsigned long rhsulong;
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if (isl_int_sgn(rhs) == 0)
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return;
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isl_int_init(result);
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isl_int_divexact(result, lhs, rhs);
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assert(isl_int_eq(expected, result));
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isl_int_tdiv_q(result, lhs, rhs);
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assert(isl_int_eq(expected, result));
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isl_int_fdiv_q(result, lhs, rhs);
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assert(isl_int_eq(expected, result));
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isl_int_cdiv_q(result, lhs, rhs);
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assert(isl_int_eq(expected, result));
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if (isl_int_fits_ulong(rhs)) {
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rhsulong = isl_int_get_ui(rhs);
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isl_int_divexact_ui(result, lhs, rhsulong);
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assert(isl_int_eq(expected, result));
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isl_int_fdiv_q_ui(result, lhs, rhsulong);
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assert(isl_int_eq(expected, result));
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isl_int_cdiv_q_ui(result, lhs, rhsulong);
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assert(isl_int_eq(expected, result));
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}
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isl_int_clear(result);
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}
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static void int_test_mul(isl_int expected, isl_int lhs, isl_int rhs)
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{
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isl_int result;
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isl_int_init(result);
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isl_int_mul(result, lhs, rhs);
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assert(isl_int_eq(expected, result));
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if (isl_int_fits_ulong(rhs)) {
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unsigned long rhsulong = isl_int_get_ui(rhs);
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isl_int_mul_ui(result, lhs, rhsulong);
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assert(isl_int_eq(expected, result));
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}
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if (isl_int_fits_slong(rhs)) {
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unsigned long rhsslong = isl_int_get_si(rhs);
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isl_int_mul_si(result, lhs, rhsslong);
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assert(isl_int_eq(expected, result));
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}
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isl_int_clear(result);
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}
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/* Use a triple that satisfies 'product = factor1 * factor2' to check the
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* operations mul, divexact, tdiv, fdiv and cdiv.
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*/
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static void int_test_product(isl_int product, isl_int factor1, isl_int factor2)
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{
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int_test_divexact(factor1, product, factor2);
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int_test_divexact(factor2, product, factor1);
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int_test_mul(product, factor1, factor2);
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int_test_mul(product, factor2, factor1);
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}
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static void int_test_add(isl_int expected, isl_int lhs, isl_int rhs)
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{
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isl_int result;
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isl_int_init(result);
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isl_int_add(result, lhs, rhs);
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assert(isl_int_eq(expected, result));
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isl_int_clear(result);
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}
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static void int_test_sub(isl_int expected, isl_int lhs, isl_int rhs)
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{
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isl_int result;
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isl_int_init(result);
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isl_int_sub(result, lhs, rhs);
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assert(isl_int_eq(expected, result));
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isl_int_clear(result);
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}
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/* Use a triple that satisfies 'sum = term1 + term2' to check the operations add
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* and sub.
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*/
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static void int_test_sum(isl_int sum, isl_int term1, isl_int term2)
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{
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int_test_sub(term1, sum, term2);
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int_test_sub(term2, sum, term1);
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int_test_add(sum, term1, term2);
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int_test_add(sum, term2, term1);
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}
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static void int_test_fdiv(isl_int expected, isl_int lhs, isl_int rhs)
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{
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unsigned long rhsulong;
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isl_int result;
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isl_int_init(result);
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isl_int_fdiv_q(result, lhs, rhs);
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assert(isl_int_eq(expected, result));
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if (isl_int_fits_ulong(rhs)) {
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rhsulong = isl_int_get_ui(rhs);
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isl_int_fdiv_q_ui(result, lhs, rhsulong);
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assert(isl_int_eq(expected, result));
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}
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isl_int_clear(result);
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}
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static void int_test_cdiv(isl_int expected, isl_int lhs, isl_int rhs)
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{
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unsigned long rhsulong;
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isl_int result;
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isl_int_init(result);
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isl_int_cdiv_q(result, lhs, rhs);
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assert(isl_int_eq(expected, result));
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if (isl_int_fits_ulong(rhs)) {
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rhsulong = isl_int_get_ui(rhs);
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isl_int_cdiv_q_ui(result, lhs, rhsulong);
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assert(isl_int_eq(expected, result));
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}
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isl_int_clear(result);
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}
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static void int_test_tdiv(isl_int expected, isl_int lhs, isl_int rhs)
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{
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isl_int result;
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isl_int_init(result);
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isl_int_tdiv_q(result, lhs, rhs);
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assert(isl_int_eq(expected, result));
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isl_int_clear(result);
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}
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static void int_test_fdiv_r(isl_int expected, isl_int lhs, isl_int rhs)
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{
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isl_int result;
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isl_int_init(result);
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isl_int_fdiv_r(result, lhs, rhs);
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assert(isl_int_eq(expected, result));
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isl_int_clear(result);
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}
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static void int_test_gcd(isl_int expected, isl_int lhs, isl_int rhs)
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{
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isl_int result;
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isl_int_init(result);
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isl_int_gcd(result, lhs, rhs);
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assert(isl_int_eq(expected, result));
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isl_int_gcd(result, rhs, lhs);
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assert(isl_int_eq(expected, result));
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isl_int_clear(result);
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}
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static void int_test_lcm(isl_int expected, isl_int lhs, isl_int rhs)
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{
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isl_int result;
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isl_int_init(result);
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isl_int_lcm(result, lhs, rhs);
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assert(isl_int_eq(expected, result));
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isl_int_lcm(result, rhs, lhs);
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assert(isl_int_eq(expected, result));
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isl_int_clear(result);
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}
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static int sgn(int val)
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{
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if (val > 0)
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return 1;
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if (val < 0)
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return -1;
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return 0;
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}
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static void int_test_cmp(int exp, isl_int lhs, isl_int rhs)
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{
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long rhslong;
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assert(exp == sgn(isl_int_cmp(lhs, rhs)));
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if (isl_int_fits_slong(rhs)) {
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rhslong = isl_int_get_si(rhs);
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assert(exp == sgn(isl_int_cmp_si(lhs, rhslong)));
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}
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}
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/* Test the comparison relations over two numbers.
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* expected is the sign (1, 0 or -1) of 'lhs - rhs'.
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*/
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static void int_test_cmps(isl_int expected, isl_int lhs, isl_int rhs)
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{
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int exp;
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isl_int diff;
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exp = isl_int_get_si(expected);
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isl_int_init(diff);
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isl_int_sub(diff, lhs, rhs);
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assert(exp == isl_int_sgn(diff));
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isl_int_clear(diff);
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int_test_cmp(exp, lhs, rhs);
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int_test_cmp(-exp, rhs, lhs);
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}
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static void int_test_abs_cmp(isl_int expected, isl_int lhs, isl_int rhs)
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{
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int exp;
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exp = isl_int_get_si(expected);
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assert(exp == sgn(isl_int_abs_cmp(lhs, rhs)));
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assert(-exp == sgn(isl_int_abs_cmp(rhs, lhs)));
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}
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/* If "expected" is equal to 1, then check that "rhs" divides "lhs".
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* If "expected" is equal to 0, then check that "rhs" does not divide "lhs".
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*/
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static void int_test_divisible(isl_int expected, isl_int lhs, isl_int rhs)
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{
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int exp;
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exp = isl_int_get_si(expected);
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assert(isl_int_is_divisible_by(lhs, rhs) == exp);
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}
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struct {
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void (*fn)(isl_int, isl_int, isl_int);
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char *expected, *lhs, *rhs;
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} int_binary_tests[] = {
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{ &int_test_sum, "0", "0", "0" },
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{ &int_test_sum, "1", "1", "0" },
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{ &int_test_sum, "2", "1", "1" },
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{ &int_test_sum, "-1", "0", "-1" },
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{ &int_test_sum, "-2", "-1", "-1" },
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{ &int_test_sum, "2147483647", "1073741823", "1073741824" },
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{ &int_test_sum, "-2147483648", "-1073741824", "-1073741824" },
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{ &int_test_sum, "2147483648", "2147483647", "1" },
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{ &int_test_sum, "-2147483648", "-2147483647", "-1" },
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{ &int_test_product, "0", "0", "0" },
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{ &int_test_product, "0", "0", "1" },
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{ &int_test_product, "1", "1", "1" },
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{ &int_test_product, "6", "2", "3" },
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{ &int_test_product, "-6", "2", "-3" },
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{ &int_test_product, "-6", "-2", "3" },
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{ &int_test_product, "6", "-2", "-3" },
|
|
|
|
{ &int_test_product, "2147483648", "65536", "32768" },
|
|
{ &int_test_product, "-2147483648", "65536", "-32768" },
|
|
|
|
{ &int_test_product,
|
|
"4611686014132420609", "2147483647", "2147483647" },
|
|
{ &int_test_product,
|
|
"-4611686014132420609", "-2147483647", "2147483647" },
|
|
|
|
{ &int_test_product,
|
|
"4611686016279904256", "2147483647", "2147483648" },
|
|
{ &int_test_product,
|
|
"-4611686016279904256", "-2147483647", "2147483648" },
|
|
{ &int_test_product,
|
|
"-4611686016279904256", "2147483647", "-2147483648" },
|
|
{ &int_test_product,
|
|
"4611686016279904256", "-2147483647", "-2147483648" },
|
|
|
|
{ &int_test_product, "85070591730234615847396907784232501249",
|
|
"9223372036854775807", "9223372036854775807" },
|
|
{ &int_test_product, "-85070591730234615847396907784232501249",
|
|
"-9223372036854775807", "9223372036854775807" },
|
|
|
|
{ &int_test_product, "85070591730234615856620279821087277056",
|
|
"9223372036854775807", "9223372036854775808" },
|
|
{ &int_test_product, "-85070591730234615856620279821087277056",
|
|
"-9223372036854775807", "9223372036854775808" },
|
|
{ &int_test_product, "-85070591730234615856620279821087277056",
|
|
"9223372036854775807", "-9223372036854775808" },
|
|
{ &int_test_product, "85070591730234615856620279821087277056",
|
|
"-9223372036854775807", "-9223372036854775808" },
|
|
|
|
{ &int_test_product, "340282366920938463426481119284349108225",
|
|
"18446744073709551615", "18446744073709551615" },
|
|
{ &int_test_product, "-340282366920938463426481119284349108225",
|
|
"-18446744073709551615", "18446744073709551615" },
|
|
|
|
{ &int_test_product, "340282366920938463444927863358058659840",
|
|
"18446744073709551615", "18446744073709551616" },
|
|
{ &int_test_product, "-340282366920938463444927863358058659840",
|
|
"-18446744073709551615", "18446744073709551616" },
|
|
{ &int_test_product, "-340282366920938463444927863358058659840",
|
|
"18446744073709551615", "-18446744073709551616" },
|
|
{ &int_test_product, "340282366920938463444927863358058659840",
|
|
"-18446744073709551615", "-18446744073709551616" },
|
|
|
|
{ &int_test_fdiv, "0", "1", "2" },
|
|
{ &int_test_fdiv_r, "1", "1", "3" },
|
|
{ &int_test_fdiv, "-1", "-1", "2" },
|
|
{ &int_test_fdiv_r, "2", "-1", "3" },
|
|
{ &int_test_fdiv, "-1", "1", "-2" },
|
|
{ &int_test_fdiv_r, "-2", "1", "-3" },
|
|
{ &int_test_fdiv, "0", "-1", "-2" },
|
|
{ &int_test_fdiv_r, "-1", "-1", "-3" },
|
|
|
|
{ &int_test_cdiv, "1", "1", "2" },
|
|
{ &int_test_cdiv, "0", "-1", "2" },
|
|
{ &int_test_cdiv, "0", "1", "-2" },
|
|
{ &int_test_cdiv, "1", "-1", "-2" },
|
|
|
|
{ &int_test_cdiv, "1073741824", "2147483647", "2" },
|
|
{ &int_test_cdiv, "1073741824", "2147483648", "2" },
|
|
{ &int_test_cdiv, "-1073741824", "-2147483648", "2" },
|
|
{ &int_test_cdiv, "-1073741823", "-2147483647", "2" },
|
|
|
|
{ &int_test_tdiv, "0", "1", "2" },
|
|
{ &int_test_tdiv, "0", "-1", "2" },
|
|
{ &int_test_tdiv, "0", "1", "-2" },
|
|
{ &int_test_tdiv, "0", "-1", "-2" },
|
|
|
|
{ &int_test_gcd, "0", "0", "0" },
|
|
{ &int_test_lcm, "0", "0", "0" },
|
|
{ &int_test_gcd, "7", "0", "7" },
|
|
{ &int_test_lcm, "0", "0", "7" },
|
|
{ &int_test_gcd, "1", "1", "1" },
|
|
{ &int_test_lcm, "1", "1", "1" },
|
|
{ &int_test_gcd, "1", "1", "-1" },
|
|
{ &int_test_lcm, "1", "1", "-1" },
|
|
{ &int_test_gcd, "1", "-1", "-1" },
|
|
{ &int_test_lcm, "1", "-1", "-1" },
|
|
{ &int_test_gcd, "3", "6", "9" },
|
|
{ &int_test_lcm, "18", "6", "9" },
|
|
{ &int_test_gcd, "1", "14", "2147483647" },
|
|
{ &int_test_lcm, "15032385529", "7", "2147483647" },
|
|
{ &int_test_gcd, "2", "6", "-2147483648" },
|
|
{ &int_test_lcm, "6442450944", "6", "-2147483648" },
|
|
{ &int_test_gcd, "1", "6", "9223372036854775807" },
|
|
{ &int_test_lcm, "55340232221128654842", "6", "9223372036854775807" },
|
|
{ &int_test_gcd, "2", "6", "-9223372036854775808" },
|
|
{ &int_test_lcm, "27670116110564327424", "6", "-9223372036854775808" },
|
|
{ &int_test_gcd, "1", "18446744073709551616", "18446744073709551615" },
|
|
{ &int_test_lcm, "340282366920938463444927863358058659840",
|
|
"18446744073709551616", "18446744073709551615" },
|
|
|
|
{ &int_test_cmps, "0", "0", "0" },
|
|
{ &int_test_abs_cmp, "0", "0", "0" },
|
|
{ &int_test_cmps, "1", "1", "0" },
|
|
{ &int_test_abs_cmp, "1", "1", "0" },
|
|
{ &int_test_cmps, "-1", "-1", "0" },
|
|
{ &int_test_abs_cmp, "1", "-1", "0" },
|
|
{ &int_test_cmps, "-1", "-1", "1" },
|
|
{ &int_test_abs_cmp, "0", "-1", "1" },
|
|
|
|
{ &int_test_cmps, "-1", "5", "2147483647" },
|
|
{ &int_test_abs_cmp, "-1", "5", "2147483647" },
|
|
{ &int_test_cmps, "1", "5", "-2147483648" },
|
|
{ &int_test_abs_cmp, "-1", "5", "-2147483648" },
|
|
{ &int_test_cmps, "-1", "5", "9223372036854775807" },
|
|
{ &int_test_abs_cmp, "-1", "5", "9223372036854775807" },
|
|
{ &int_test_cmps, "1", "5", "-9223372036854775809" },
|
|
{ &int_test_abs_cmp, "-1", "5", "-9223372036854775809" },
|
|
|
|
{ &int_test_divisible, "1", "0", "0" },
|
|
{ &int_test_divisible, "0", "1", "0" },
|
|
{ &int_test_divisible, "0", "2", "0" },
|
|
{ &int_test_divisible, "0", "2147483647", "0" },
|
|
{ &int_test_divisible, "0", "9223372036854775807", "0" },
|
|
{ &int_test_divisible, "1", "0", "1" },
|
|
{ &int_test_divisible, "1", "1", "1" },
|
|
{ &int_test_divisible, "1", "2", "1" },
|
|
{ &int_test_divisible, "1", "2147483647", "1" },
|
|
{ &int_test_divisible, "1", "9223372036854775807", "1" },
|
|
{ &int_test_divisible, "1", "0", "2" },
|
|
{ &int_test_divisible, "0", "1", "2" },
|
|
{ &int_test_divisible, "1", "2", "2" },
|
|
{ &int_test_divisible, "0", "2147483647", "2" },
|
|
{ &int_test_divisible, "0", "9223372036854775807", "2" },
|
|
};
|
|
|
|
/* Tests the isl_int_* function to give the expected results. Tests are
|
|
* grouped by the number of arguments they take.
|
|
*
|
|
* If small integer optimization is enabled, we also test whether the results
|
|
* are the same in small and big representation.
|
|
*/
|
|
int main()
|
|
{
|
|
int i;
|
|
|
|
int_test_single_value();
|
|
|
|
for (i = 0; i < ARRAY_SIZE(int_unary_tests); i += 1) {
|
|
invoke_alternate_representations_2args(
|
|
int_unary_tests[i].expected, int_unary_tests[i].arg,
|
|
int_unary_tests[i].fn);
|
|
}
|
|
|
|
for (i = 0; i < ARRAY_SIZE(int_binary_tests); i += 1) {
|
|
invoke_alternate_representations_3args(
|
|
int_binary_tests[i].expected, int_binary_tests[i].lhs,
|
|
int_binary_tests[i].rhs, int_binary_tests[i].fn);
|
|
}
|
|
|
|
return 0;
|
|
}
|