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, 72 insertions, 0 deletions

diff --git a/REORG.TODO/stdlib/tst-limits.c b/REORG.TODO/stdlib/tst-limits.c
new file mode 100644
index 0000000000..9aabc360f6
--- /dev/null
+++ b/REORG.TODO/stdlib/tst-limits.c
@@ -0,0 +1,72 @@
+/* It is important that this comes first to not hide effects introduced
+   by other headers.  */
+#include <limits.h>
+
+#include <inttypes.h>
+#include <stdio.h>
+
+
+static long long int
+bitval (int bits)
+{
+  long long int val = 0;
+  while (bits-- > 0)
+    val |= 1ll << bits;
+  return val;
+}
+
+
+static int
+do_test (void)
+{
+  int result = 0;
+
+#define TEST(name, format, expected) \
+  printf ("%-12s expected = %-20" format "  actual = %" format "\n",	      \
+	  #name ":", expected, name);					      \
+  result |= name != expected
+
+  /* The limits from ISO C99.  */
+
+  /* We cannot support anything but 8-bit chars.  */
+  TEST (CHAR_BIT, "d", 8);
+  TEST (SCHAR_MIN, "d", -128);
+  TEST (SCHAR_MAX, "d", 127);
+  TEST (UCHAR_MAX, "d", 255);
+
+  TEST (SHRT_MIN, "d", -(1 << (sizeof (short int) * CHAR_BIT - 1)));
+  TEST (SHRT_MAX, "d", (1 << (sizeof (short int) * CHAR_BIT - 1)) - 1);
+  TEST (USHRT_MAX, "d", (1 << sizeof (short int) * CHAR_BIT) - 1);
+
+  TEST (INT_MIN, "d", (int) -bitval (sizeof (int) * CHAR_BIT - 1) - 1);
+  TEST (INT_MAX, "d", (int) bitval (sizeof (int) * CHAR_BIT - 1));
+  TEST (UINT_MAX, "u",
+	(unsigned int) bitval (sizeof (unsigned int) * CHAR_BIT));
+
+  TEST (LONG_MIN, "ld",
+	(long int) -bitval (sizeof (long int) * CHAR_BIT - 1) - 1);
+  TEST (LONG_MAX, "ld", (long int) bitval (sizeof (long int) * CHAR_BIT - 1));
+  TEST (ULONG_MAX, "lu",
+	(unsigned long int) bitval (sizeof (unsigned long int) * CHAR_BIT));
+
+  TEST (LLONG_MIN, "lld", -bitval (sizeof (long long int) * CHAR_BIT - 1) - 1);
+  TEST (LLONG_MAX, "lld", bitval (sizeof (long long int) * CHAR_BIT - 1));
+  TEST (ULLONG_MAX, "llu",
+	(unsigned long long int) bitval (sizeof (unsigned long long int)
+					 * CHAR_BIT));
+
+  /* Values from POSIX and Unix.  */
+#ifdef PAGESIZE
+  TEST (PAGESIZE, "d", getpagesize ());
+#elif defined (PAGE_SIZE)
+  TEST (PAGE_SIZE, "d", getpagesize ());
+#endif
+
+  TEST (WORD_BIT, "d", (int) sizeof (int) * CHAR_BIT);
+  TEST (LONG_BIT, "d", (int) sizeof (long int) * CHAR_BIT);
+
+  return result;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"