1 files changed, 135 insertions, 0 deletions
diff --git a/gnu/lib/libgmp/mpz/tests/reuse.c b/gnu/lib/libgmp/mpz/tests/reuse.c
new file mode 100644
index 00000000000..52fc5a51677
--- /dev/null
+++ b/gnu/lib/libgmp/mpz/tests/reuse.c
@@ -0,0 +1,135 @@
+/* Test that routines allow reusing a source variable as destination.  */
+
+#include <stdio.h>
+#include "gmp.h"
+#include "gmp-impl.h"
+#include "urandom.h"
+
+#ifndef SIZE
+#define SIZE 16
+#endif
+
+#if __STDC__
+typedef void (*dss_func) (mpz_ptr, mpz_srcptr, mpz_srcptr);
+#else
+typedef void (*dss_func) ();
+#endif
+
+dss_func dss_funcs[] =
+{
+  mpz_add, mpz_and, mpz_cdiv_q, mpz_cdiv_r, mpz_fdiv_q, mpz_fdiv_r,
+  mpz_gcd, mpz_ior, mpz_mul, mpz_sub, mpz_tdiv_q, mpz_tdiv_r
+};
+
+char *dss_func_names[] =
+{
+  "mpz_add", "mpz_and", "mpz_cdiv_q", "mpz_cdiv_r", "mpz_fdiv_q", "mpz_fdiv_r",
+  "mpz_gcd", "mpz_ior", "mpz_mul", "mpz_sub", "mpz_tdiv_q", "mpz_tdiv_r"
+};
+
+char dss_func_division[] = {0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1};
+
+#if 0
+mpz_divexact /* requires special operands */
+#endif
+
+main (argc, argv)
+     int argc;
+     char **argv;
+{
+  int i;
+  int pass, reps = 10000;
+  mpz_t in1, in2, out1;
+  mpz_t res1, res2, res3;
+
+  if (argc == 2)
+     reps = atoi (argv[1]);
+
+  mpz_init (in1);
+  mpz_init (in2);
+  mpz_init (out1);
+  mpz_init (res1);
+  mpz_init (res2);
+  mpz_init (res3);
+
+  for (pass = 1; pass <= reps; pass++)
+    {
+      mpz_random (in1, urandom () % SIZE - SIZE/2);
+      mpz_random (in2, urandom () % SIZE - SIZE/2);
+
+      for (i = 0; i < sizeof (dss_funcs) / sizeof (dss_func); i++)
+	{
+	  if (dss_func_division[i] && mpz_cmp_ui (in2, 0) == 0)
+	    continue;
+
+	  (dss_funcs[i]) (res1, in1, in2);
+
+	  mpz_set (out1, in1);
+	  (dss_funcs[i]) (out1, out1, in2);
+	  mpz_set (res2, out1);
+
+	  mpz_set (out1, in2);
+	  (dss_funcs[i]) (out1, in1, out1);
+	  mpz_set (res3, out1);
+
+	  if (mpz_cmp (res1, res2) != 0)
+	    dump_abort (dss_func_names[i], in1, in2);
+	  if (mpz_cmp (res1, res3) != 0)
+	    dump_abort (dss_func_names[i], in1, in2);
+	}
+    }
+
+  exit (0);
+}
+
+dump_abort (name, in1, in2)
+     char *name;
+     mpz_t in1, in2;
+{
+  printf ("failure in %s (", name);
+  mpz_out_str (stdout, -16, in1);
+  printf (" ");
+  mpz_out_str (stdout, -16, in2);
+  printf (")\n");
+  abort ();
+}
+
+#if 0
+void mpz_add_ui		_PROTO ((mpz_ptr, mpz_srcptr, unsigned long int));
+void mpz_div_2exp	_PROTO ((mpz_ptr, mpz_srcptr, unsigned long int));
+void mpz_mod_2exp	_PROTO ((mpz_ptr, mpz_srcptr, unsigned long int));
+void mpz_mul_2exp	_PROTO ((mpz_ptr, mpz_srcptr, unsigned long int));
+void mpz_mul_ui		_PROTO ((mpz_ptr, mpz_srcptr, unsigned long int));
+void mpz_pow_ui		_PROTO ((mpz_ptr, mpz_srcptr, unsigned long int));
+void mpz_sub_ui		_PROTO ((mpz_ptr, mpz_srcptr, unsigned long int));
+void mpz_tdiv_q_ui	_PROTO ((mpz_ptr, mpz_srcptr, unsigned long int));
+void mpz_tdiv_r_ui	_PROTO ((mpz_ptr, mpz_srcptr, unsigned long int));
+
+void mpz_abs		_PROTO ((mpz_ptr, mpz_srcptr));
+void mpz_com		_PROTO ((mpz_ptr, mpz_srcptr));
+void mpz_sqrt		_PROTO ((mpz_ptr, mpz_srcptr));
+void mpz_neg		_PROTO ((mpz_ptr, mpz_srcptr));
+
+void mpz_tdiv_qr_ui	_PROTO ((mpz_ptr, mpz_ptr, mpz_srcptr, unsigned long int));
+
+void mpz_powm_ui	_PROTO ((mpz_ptr, mpz_srcptr, unsigned long int, mpz_srcptr));
+
+void mpz_gcdext		_PROTO ((mpz_ptr, mpz_ptr, mpz_ptr, mpz_srcptr, mpz_srcptr));
+
+void mpz_cdiv_qr	_PROTO ((mpz_ptr, mpz_ptr, mpz_srcptr, mpz_srcptr));
+void mpz_fdiv_qr	_PROTO ((mpz_ptr, mpz_ptr, mpz_srcptr, mpz_srcptr));
+void mpz_tdiv_qr	_PROTO ((mpz_ptr, mpz_ptr, mpz_srcptr, mpz_srcptr));
+
+void mpz_powm		_PROTO ((mpz_ptr, mpz_srcptr, mpz_srcptr, mpz_srcptr));
+
+void mpz_sqrtrem	_PROTO ((mpz_ptr, mpz_ptr, mpz_srcptr));
+
+unsigned long int mpz_cdiv_qr_ui	_PROTO ((mpz_ptr, mpz_ptr, mpz_srcptr, unsigned long int));
+unsigned long int mpz_fdiv_qr_ui	_PROTO ((mpz_ptr, mpz_ptr, mpz_srcptr, unsigned long int));
+
+unsigned long int mpz_cdiv_q_ui	_PROTO ((mpz_ptr, mpz_srcptr, unsigned long int));
+unsigned long int mpz_cdiv_r_ui	_PROTO ((mpz_ptr, mpz_srcptr, unsigned long int));
+unsigned long int mpz_fdiv_q_ui	_PROTO ((mpz_ptr, mpz_srcptr, unsigned long int));
+unsigned long int mpz_fdiv_r_ui	_PROTO ((mpz_ptr, mpz_srcptr, unsigned long int));
+unsigned long int mpz_gcd_ui	_PROTO ((mpz_ptr, mpz_srcptr, unsigned long int));
+#endif