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, 327 insertions, 0 deletions

diff --git a/REORG.TODO/math/bug-nexttoward.c b/REORG.TODO/math/bug-nexttoward.c
new file mode 100644
index 0000000000..c42bc35767
--- /dev/null
+++ b/REORG.TODO/math/bug-nexttoward.c
@@ -0,0 +1,327 @@
+#include <fenv.h>
+#include <math.h>
+#include <float.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <math-tests.h>
+
+#if !defined(FE_OVERFLOW) && !defined(FE_UNDERFLOW)
+/* If there's no support for the exceptions this test is checking,
+   then just return success and allow the test to be compiled.  */
+# define fetestexcept(e) 1
+#endif
+
+float zero = 0.0;
+float inf = INFINITY;
+
+int
+main (void)
+{
+  int result = 0;
+
+  long double tl = (long double) FLT_MAX + 0x1.0p128L;
+  float fi = INFINITY;
+  float m = FLT_MAX;
+  feclearexcept (FE_ALL_EXCEPT);
+  if (nexttowardf (m, tl) != fi)
+    {
+      puts ("nexttowardf+ failed");
+      ++result;
+    }
+  if (EXCEPTION_TESTS (float) && fetestexcept (FE_OVERFLOW) == 0)
+    {
+      puts ("nexttowardf+ did not overflow");
+      ++result;
+    }
+  feclearexcept (FE_ALL_EXCEPT);
+  if (nexttowardf (-m, -tl) != -fi)
+    {
+      puts ("nexttowardf- failed");
+      ++result;
+    }
+  if (EXCEPTION_TESTS (float) && fetestexcept (FE_OVERFLOW) == 0)
+    {
+      puts ("nexttowardf- did not overflow");
+      ++result;
+    }
+
+  fi = 0;
+  m = FLT_MIN;
+  feclearexcept (FE_ALL_EXCEPT);
+  fi = nexttowardf (m, fi);
+  if (fi < 0 || fi >= FLT_MIN)
+    {
+      puts ("nexttowardf+ failed");
+      ++result;
+    }
+  if (EXCEPTION_TESTS (float) && fetestexcept (FE_UNDERFLOW) == 0)
+    {
+      puts ("nexttowardf+ did not underflow");
+      ++result;
+    }
+  fi = 0;
+  feclearexcept (FE_ALL_EXCEPT);
+  fi = nexttowardf (-m, -fi);
+  if (fi > 0 || fi <= -FLT_MIN)
+    {
+      puts ("nexttowardf- failed");
+      ++result;
+    }
+  if (EXCEPTION_TESTS (float) && fetestexcept (FE_UNDERFLOW) == 0)
+    {
+      puts ("nexttowardf- did not underflow");
+      ++result;
+    }
+  fi = -INFINITY;
+  feclearexcept (FE_ALL_EXCEPT);
+  m = nexttowardf (zero, inf);
+  if (m < 0.0 || m >= FLT_MIN)
+    {
+      puts ("nexttowardf+ failed");
+      ++result;
+    }
+  if (EXCEPTION_TESTS (float) && fetestexcept (FE_UNDERFLOW) == 0)
+    {
+      puts ("nexttowardf+ did not underflow");
+      ++result;
+    }
+  feclearexcept (FE_ALL_EXCEPT);
+  if (nexttowardf (m, fi) != 0.0)
+    {
+      puts ("nexttowardf+ failed");
+      ++result;
+    }
+  if (EXCEPTION_TESTS (float) && fetestexcept (FE_UNDERFLOW) == 0)
+    {
+      puts ("nexttowardf+ did not underflow");
+      ++result;
+    }
+  feclearexcept (FE_ALL_EXCEPT);
+  m = nexttowardf (copysignf (zero, -1.0), -inf);
+  if (m > 0.0 || m <= -FLT_MIN)
+    {
+      puts ("nexttowardf- failed");
+      ++result;
+    }
+  if (EXCEPTION_TESTS (float) && fetestexcept (FE_UNDERFLOW) == 0)
+    {
+      puts ("nexttowardf- did not underflow");
+      ++result;
+    }
+  feclearexcept (FE_ALL_EXCEPT);
+  if (nexttowardf (m, -fi) != 0.0)
+    {
+      puts ("nexttowardf- failed");
+      ++result;
+    }
+  if (EXCEPTION_TESTS (float) && fetestexcept (FE_UNDERFLOW) == 0)
+    {
+      puts ("nexttowardf- did not underflow");
+      ++result;
+    }
+
+  tl = (long double) DBL_MAX + 1.0e305L;
+  double di = INFINITY;
+  double dm = DBL_MAX;
+  feclearexcept (FE_ALL_EXCEPT);
+  if (nexttoward (dm, tl) != di)
+    {
+      puts ("nexttoward+ failed");
+      ++result;
+    }
+  if (EXCEPTION_TESTS (double) && fetestexcept (FE_OVERFLOW) == 0)
+    {
+      puts ("nexttoward+ did not overflow");
+      ++result;
+    }
+  feclearexcept (FE_ALL_EXCEPT);
+  if (nexttoward (-dm, -tl) != -di)
+    {
+      puts ("nexttoward- failed");
+      ++result;
+    }
+  if (EXCEPTION_TESTS (double) && fetestexcept (FE_OVERFLOW) == 0)
+    {
+      puts ("nexttoward- did not overflow");
+      ++result;
+    }
+
+  di = 0;
+  dm = DBL_MIN;
+  feclearexcept (FE_ALL_EXCEPT);
+  di = nexttoward (dm, di);
+  if (di < 0 || di >= DBL_MIN)
+    {
+      puts ("nexttoward+ failed");
+      ++result;
+    }
+  if (EXCEPTION_TESTS (double) && fetestexcept (FE_UNDERFLOW) == 0)
+    {
+      puts ("nexttoward+ did not underflow");
+      ++result;
+    }
+  di = 0;
+  feclearexcept (FE_ALL_EXCEPT);
+  di = nexttoward (-dm, -di);
+  if (di > 0 || di <= -DBL_MIN)
+    {
+      puts ("nexttoward- failed");
+      ++result;
+    }
+  if (EXCEPTION_TESTS (double) && fetestexcept (FE_UNDERFLOW) == 0)
+    {
+      puts ("nexttoward- did not underflow");
+      ++result;
+    }
+  di = -INFINITY;
+  feclearexcept (FE_ALL_EXCEPT);
+  dm = nexttoward (zero, inf);
+  if (dm < 0.0 || dm >= DBL_MIN)
+    {
+      puts ("nexttoward+ failed");
+      ++result;
+    }
+  if (EXCEPTION_TESTS (double) && fetestexcept (FE_UNDERFLOW) == 0)
+    {
+      puts ("nexttoward+ did not underflow");
+      ++result;
+    }
+  feclearexcept (FE_ALL_EXCEPT);
+  if (nexttoward (dm, di) != 0.0)
+    {
+      puts ("nexttoward+ failed");
+      ++result;
+    }
+  if (EXCEPTION_TESTS (double) && fetestexcept (FE_UNDERFLOW) == 0)
+    {
+      puts ("nexttoward+ did not underflow");
+      ++result;
+    }
+  feclearexcept (FE_ALL_EXCEPT);
+  dm = nexttoward (copysign (zero, -1.0), -inf);
+  if (dm > 0.0 || dm <= -DBL_MIN)
+    {
+      puts ("nexttoward- failed");
+      ++result;
+    }
+  if (EXCEPTION_TESTS (double) && fetestexcept (FE_UNDERFLOW) == 0)
+    {
+      puts ("nexttoward- did not underflow");
+      ++result;
+    }
+  feclearexcept (FE_ALL_EXCEPT);
+  if (nexttoward (dm, -di) != 0.0)
+    {
+      puts ("nexttoward- failed");
+      ++result;
+    }
+  if (EXCEPTION_TESTS (double) && fetestexcept (FE_UNDERFLOW) == 0)
+    {
+      puts ("nexttoward- did not underflow");
+      ++result;
+    }
+
+#ifndef NO_LONG_DOUBLE
+  long double li = INFINITY;
+  long double lm = LDBL_MAX;
+  feclearexcept (FE_ALL_EXCEPT);
+  if (nexttowardl (lm, li) != li)
+    {
+      puts ("nexttowardl+ failed");
+      ++result;
+    }
+  if (EXCEPTION_TESTS (long double) && fetestexcept (FE_OVERFLOW) == 0)
+    {
+      puts ("nexttowardl+ did not overflow");
+      ++result;
+    }
+  feclearexcept (FE_ALL_EXCEPT);
+  if (nexttowardl (-lm, -li) != -li)
+    {
+      puts ("nexttowardl failed");
+      ++result;
+    }
+  if (EXCEPTION_TESTS (long double) && fetestexcept (FE_OVERFLOW) == 0)
+    {
+      puts ("nexttowardl- did not overflow");
+      ++result;
+    }
+
+  li = 0;
+  lm = LDBL_MIN;
+  feclearexcept (FE_ALL_EXCEPT);
+  li = nexttowardl (lm, li);
+  if (li < 0 || li >= LDBL_MIN)
+    {
+      puts ("nexttowardl+ failed");
+      ++result;
+    }
+  if (EXCEPTION_TESTS (long double) && fetestexcept (FE_UNDERFLOW) == 0)
+    {
+      puts ("nexttowardl+ did not underflow");
+      ++result;
+    }
+  li = 0;
+  feclearexcept (FE_ALL_EXCEPT);
+  li = nexttowardl (-lm, -li);
+  if (li > 0 || li <= -LDBL_MIN)
+    {
+      puts ("nexttowardl- failed");
+      ++result;
+    }
+  if (EXCEPTION_TESTS (long double) && fetestexcept (FE_UNDERFLOW) == 0)
+    {
+      puts ("nexttowardl- did not underflow");
+      ++result;
+    }
+  li = -INFINITY;
+  feclearexcept (FE_ALL_EXCEPT);
+  lm = nexttowardl (zero, inf);
+  if (lm < 0.0 || lm >= LDBL_MIN)
+    {
+      puts ("nexttowardl+ failed");
+      ++result;
+    }
+  if (EXCEPTION_TESTS (long double) && fetestexcept (FE_UNDERFLOW) == 0)
+    {
+      puts ("nexttowardl+ did not underflow");
+      ++result;
+    }
+  feclearexcept (FE_ALL_EXCEPT);
+  if (nexttowardl (lm, li) != 0.0)
+    {
+      puts ("nexttowardl+ failed");
+      ++result;
+    }
+  if (EXCEPTION_TESTS (long double) && fetestexcept (FE_UNDERFLOW) == 0)
+    {
+      puts ("nexttowardl+ did not underflow");
+      ++result;
+    }
+  feclearexcept (FE_ALL_EXCEPT);
+  lm = nexttowardl (copysign (zero, -1.0), -inf);
+  if (lm > 0.0 || lm <= -LDBL_MIN)
+    {
+      puts ("nexttowardl- failed");
+      ++result;
+    }
+  if (EXCEPTION_TESTS (long double) && fetestexcept (FE_UNDERFLOW) == 0)
+    {
+      puts ("nexttowardl- did not underflow");
+      ++result;
+    }
+  feclearexcept (FE_ALL_EXCEPT);
+  if (nexttowardl (lm, -li) != 0.0)
+    {
+      puts ("nexttowardl- failed");
+      ++result;
+    }
+  if (EXCEPTION_TESTS (long double) && fetestexcept (FE_UNDERFLOW) == 0)
+    {
+      puts ("nexttowardl- did not underflow");
+      ++result;
+    }
+#endif
+
+  return result;
+}