1 files changed, 148 insertions, 0 deletions
diff --git a/gmp-6.3.0/tests/cxx/t-rand.cc b/gmp-6.3.0/tests/cxx/t-rand.cc
new file mode 100644
index 0000000..d336d08
--- /dev/null
+++ b/gmp-6.3.0/tests/cxx/t-rand.cc
@@ -0,0 +1,148 @@
+/* Test gmp_randclass.
+
+Copyright 2002, 2003 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 3 of the License,
+or (at your option) any later version.
+
+The GNU MP Library test suite is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include "gmpxx.h"
+#include "gmp-impl.h"
+#include "tests.h"
+
+using namespace std;
+
+
+/* all flavours of initialization */
+void
+check_randinit (void)
+{
+  {
+    gmp_randclass r(gmp_randinit_default);
+  }
+
+  {
+    mpz_class a(0);
+    unsigned long c = 0, m2exp = 8;
+    gmp_randclass r(gmp_randinit_lc_2exp, a, c, m2exp);
+  }
+
+  {
+    unsigned long m2exp = 64;
+    gmp_randclass r(gmp_randinit_lc_2exp_size, m2exp);
+  }
+
+  /* gmp_randinit_lc_2exp_size, with excessive size */
+  {
+    try {
+      unsigned long m2exp = ULONG_MAX;
+      gmp_randclass r(gmp_randinit_lc_2exp_size, m2exp);
+      ASSERT_ALWAYS (0);  /* should not be reached */
+    } catch (length_error&) {
+    }
+  }
+
+  {
+    gmp_randclass r(gmp_randinit_mt);
+  }
+
+  /* obsolete, but still available */
+  {
+    gmp_randalg_t alg = GMP_RAND_ALG_LC;
+    unsigned long m2exp = 64;
+    gmp_randclass r(alg, m2exp);
+  }
+  {
+    gmp_randalg_t alg = GMP_RAND_ALG_DEFAULT;
+    unsigned long m2exp = 64;
+    gmp_randclass r(alg, m2exp);
+  }
+  {
+    gmp_randalg_t alg = (gmp_randalg_t) 0;
+    unsigned long m2exp = 64;
+    gmp_randclass r(alg, m2exp);
+  }
+}
+
+void
+check_mpz (void)
+{
+  {
+    gmp_randclass r(gmp_randinit_default);
+    mpz_class a(123);
+    unsigned int b = 256;
+    mpz_class c;
+    r.seed(a);
+    c = r.get_z_bits(b);
+  }
+  {
+    gmp_randclass r(gmp_randinit_default);
+    mpz_class a(256);
+    unsigned long b = 123;
+    mpz_class c;
+    r.seed(b);
+    c = r.get_z_bits(a);
+  }
+  {
+    gmp_randclass r(gmp_randinit_default);
+    mpz_class a(123), b(256);
+    mpz_class c;
+    r.seed(a);
+    c = r.get_z_range(b);
+  }
+}
+
+void
+check_mpf (void)
+{
+  {
+    gmp_randclass r(gmp_randinit_default);
+    mpz_class a(123);
+    r.seed(a);
+    mpf_class b;
+    b = r.get_f();
+    mpf_class c(r.get_f());
+    ASSERT_ALWAYS (c.get_prec() == mpf_get_default_prec());
+    mpf_class d(r.get_f(),212);
+    ASSERT_ALWAYS (d.get_prec() >= 212);
+  }
+  {
+    gmp_randclass r(gmp_randinit_default);
+    int a = 123, b = 198;
+    r.seed(a);
+    mpf_class c;
+    c = r.get_f(b);
+    ASSERT_ALWAYS (c.get_prec() == mpf_get_default_prec());
+    mpf_class d(r.get_f(b));
+    ASSERT_ALWAYS (d.get_prec() >= 198);
+    mpf_class e(r.get_f(b)-r.get_f());
+    ASSERT_ALWAYS (e.get_prec() >= 198);
+    mpf_class f(r.get_f(60),300);
+    ASSERT_ALWAYS (f.get_prec() >= 300);
+  }
+}
+
+
+int
+main (void)
+{
+  tests_start();
+
+  check_randinit();
+  check_mpz();
+  check_mpf();
+
+  tests_end();
+  return 0;
+}