Prepare for radical source tree reorganization.zack/build-layout-experiment

All top-level files and directories are moved into a temporary storage
directory, REORG.TODO, except for files that will certainly still
exist in their current form at top level when we're done (COPYING,
COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which
are moved to the new directory OldChangeLogs, instead), and the
generated file INSTALL (which is just deleted; in the new order, there
will be no generated files checked into version control).

1 files changed, 231 insertions, 0 deletions

diff --git a/REORG.TODO/math/test-femode.c b/REORG.TODO/math/test-femode.c
new file mode 100644
index 0000000000..ac3488ffda
--- /dev/null
+++ b/REORG.TODO/math/test-femode.c
@@ -0,0 +1,231 @@
+/* Test femode_t functions.
+   Copyright (C) 2016-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <fenv.h>
+#include <stdio.h>
+#include <math-tests.h>
+
+static int
+test_mmee (int mode1, int mode2, int exc1, int exc2)
+{
+  int result = 0;
+  printf ("testing %x %x %x %x\n", (unsigned int) mode1, (unsigned int) mode2,
+	  (unsigned int) exc1, (unsigned int) exc2);
+
+  feclearexcept (FE_ALL_EXCEPT);
+  int ret = fesetround (mode1);
+  if (ret != 0)
+    {
+      if (ROUNDING_TESTS (float, mode1))
+	{
+	  puts ("first fesetround failed unexpectedly");
+	  result = 1;
+	}
+      else
+	puts ("first fesetround failed, cannot test");
+      return result;
+    }
+  ret = fesetexcept (exc1);
+  if (ret != 0)
+    {
+      if (EXCEPTION_TESTS (float) || exc1 == 0)
+	{
+	  puts ("first fesetexcept failed unexpectedly");
+	  result = 1;
+	}
+      else
+	puts ("first fesetexcept failed, cannot test");
+      return result;
+    }
+  femode_t saved;
+  ret = fegetmode (&saved);
+  if (ret != 0)
+    {
+      puts ("fegetmode failed");
+      result = 1;
+      return result;
+    }
+  feclearexcept (FE_ALL_EXCEPT);
+  ret = fesetround (mode2);
+  if (ret != 0)
+    {
+      if (ROUNDING_TESTS (float, mode2))
+	{
+	  puts ("second fesetround failed unexpectedly");
+	  result = 1;
+	}
+      else
+	puts ("second fesetround failed, cannot test");
+      return result;
+    }
+  ret = fesetexcept (exc2);
+  if (ret != 0)
+    {
+      if (EXCEPTION_TESTS (float) || exc2 == 0)
+	{
+	  puts ("second fesetexcept failed unexpectedly");
+	  result = 1;
+	}
+      else
+	puts ("second fesetexcept failed, cannot test");
+      return result;
+    }
+  ret = fesetmode (&saved);
+  if (ret != 0)
+    {
+      puts ("fesetmode failed");
+      result = 1;
+      return result;
+    }
+  /* Verify that the rounding mode was restored but the exception
+     flags remain unchanged.  */
+  ret = fegetround ();
+  if (ret != mode1)
+    {
+      printf ("restored rounding mode %x not %x\n", (unsigned int) ret,
+	      (unsigned int) mode1);
+      result = 1;
+    }
+  ret = fetestexcept (FE_ALL_EXCEPT);
+  if (ret != exc2)
+    {
+      printf ("exceptions %x not %x\n", (unsigned int) ret,
+	      (unsigned int) exc2);
+      result = 1;
+    }
+  /* Likewise, with default modes.  */
+  ret = fesetmode (FE_DFL_MODE);
+  if (ret != 0)
+    {
+      puts ("fesetmode (FE_DFL_MODE) failed");
+      result = 1;
+      return result;
+    }
+  ret = fegetround ();
+  if (ret != FE_TONEAREST)
+    {
+      printf ("FE_DFL_MODE rounding mode %x not %x\n", (unsigned int) ret,
+	      (unsigned int) FE_TONEAREST);
+      result = 1;
+    }
+  ret = fetestexcept (FE_ALL_EXCEPT);
+  if (ret != exc2)
+    {
+      printf ("FE_DFL_MODE exceptions %x not %x\n", (unsigned int) ret,
+	      (unsigned int) exc2);
+      result = 1;
+    }
+  return result;
+}
+
+static int
+test_mme (int mode1, int mode2, int exc1)
+{
+  int result = 0;
+
+  result |= test_mmee (mode1, mode2, exc1, 0);
+  result |= test_mmee (mode1, mode2, exc1, FE_ALL_EXCEPT);
+#ifdef FE_DIVBYZERO
+  result |= test_mmee (mode1, mode2, exc1, FE_DIVBYZERO);
+#endif
+#ifdef FE_INEXACT
+  result |= test_mmee (mode1, mode2, exc1, FE_INEXACT);
+#endif
+#ifdef FE_INVALID
+  result |= test_mmee (mode1, mode2, exc1, FE_INVALID);
+#endif
+#ifdef FE_OVERFLOW
+  result |= test_mmee (mode1, mode2, exc1, FE_OVERFLOW);
+#endif
+#ifdef FE_UNDERFLOW
+  result |= test_mmee (mode1, mode2, exc1, FE_UNDERFLOW);
+#endif
+
+  return result;
+}
+
+static int
+test_mm (int mode1, int mode2)
+{
+  int result = 0;
+
+  result |= test_mme (mode1, mode2, 0);
+  result |= test_mme (mode1, mode2, FE_ALL_EXCEPT);
+#ifdef FE_DIVBYZERO
+  result |= test_mme (mode1, mode2, FE_DIVBYZERO);
+#endif
+#ifdef FE_INEXACT
+  result |= test_mme (mode1, mode2, FE_INEXACT);
+#endif
+#ifdef FE_INVALID
+  result |= test_mme (mode1, mode2, FE_INVALID);
+#endif
+#ifdef FE_OVERFLOW
+  result |= test_mme (mode1, mode2, FE_OVERFLOW);
+#endif
+#ifdef FE_UNDERFLOW
+  result |= test_mme (mode1, mode2, FE_UNDERFLOW);
+#endif
+
+  return result;
+}
+
+static int
+test_m (int mode1)
+{
+  int result = 0;
+
+#ifdef FE_DOWNWARD
+  result |= test_mm (mode1, FE_DOWNWARD);
+#endif
+#ifdef FE_TONEAREST
+  result |= test_mm (mode1, FE_TONEAREST);
+#endif
+#ifdef FE_TOWARDZERO
+  result |= test_mm (mode1, FE_TOWARDZERO);
+#endif
+#ifdef FE_UPWARD
+  result |= test_mm (mode1, FE_UPWARD);
+#endif
+
+  return result;
+}
+
+static int
+do_test (void)
+{
+  int result = 0;
+
+#ifdef FE_DOWNWARD
+  result |= test_m (FE_DOWNWARD);
+#endif
+#ifdef FE_TONEAREST
+  result |= test_m (FE_TONEAREST);
+#endif
+#ifdef FE_TOWARDZERO
+  result |= test_m (FE_TOWARDZERO);
+#endif
+#ifdef FE_UPWARD
+  result |= test_m (FE_UPWARD);
+#endif
+
+  return result;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"