Add libgmp 6.2.0 to third_party

Don't build it yet.  That will come in the next review.

Change-Id: Idf3266558165e5ab45f4a41c98cc8c838c8244d5
diff --git a/third_party/gmp/tests/cxx/t-ostream.cc b/third_party/gmp/tests/cxx/t-ostream.cc
new file mode 100644
index 0000000..8550f67
--- /dev/null
+++ b/third_party/gmp/tests/cxx/t-ostream.cc
@@ -0,0 +1,449 @@
+/* Test ostream formatted output.
+
+Copyright 2001, 2002 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 <iostream>
+#include <cstdlib>
+
+#include "gmp-impl.h"
+#include "tests.h"
+
+using namespace std;
+
+
+bool option_check_standard = false;
+
+
+#define CALL(expr)							\
+  do {									\
+    got.flags (data[i].flags);						\
+    got.width (data[i].width);						\
+    got.precision (data[i].precision);					\
+    if (data[i].fill == '\0')						\
+      got.fill (' ');							\
+    else								\
+      got.fill (data[i].fill);						\
+									\
+    if (! (expr))							\
+      {									\
+	cout << "\"got\" output error\n";				\
+	abort ();							\
+      }									\
+    if (got.width() != 0)						\
+      {									\
+	cout << "\"got\" width not reset to 0\n";			\
+	abort ();							\
+      }									\
+									\
+  } while (0)
+
+
+#define DUMP()								\
+  do {									\
+    cout << "  want:  |" << data[i].want << "|\n";			\
+    cout << "  got:   |" << got.str() << "|\n";				\
+    cout << "  width: " << data[i].width << "\n";			\
+    cout << "  prec:  " << got.precision() << "\n";			\
+    cout << "  flags: " << hex << (unsigned long) got.flags() << "\n";	\
+  } while (0)
+
+#define ABORT() \
+  do {          \
+    DUMP ();    \
+    abort ();   \
+  } while (0)
+
+void
+check_mpz (void)
+{
+  static const struct {
+    const char     *z;
+    const char     *want;
+    ios::fmtflags  flags;
+    int            width;
+    int            precision;
+    char           fill;
+
+  } data[] = {
+
+    { "0", "0", ios::dec },
+
+    { "0", "0", ios::oct },
+    { "0", "0", ios::oct | ios::showbase },
+
+    { "0", "0", ios::hex },
+    { "0", "0x0", ios::hex | ios::showbase },
+    { "0", "0X0", ios::hex | ios::showbase | ios::uppercase },
+
+    { "1", "****1", ios::dec, 5, 0, '*' },
+
+    { "-1", "   -1",  ios::dec | ios::right,    5 },
+    { "-1", "-   1",  ios::dec | ios::internal, 5 },
+    { "-1", "-1   ",  ios::dec | ios::left,     5 },
+
+    { "1", "   0x1", ios::hex | ios::showbase | ios::right,    6 },
+    { "1", "0x   1", ios::hex | ios::showbase | ios::internal, 6 },
+    { "1", "0x1   ", ios::hex | ios::showbase | ios::left,     6 },
+
+    { "1", "   +0x1", ios::hex | ios::showbase | ios::showpos | ios::right,
+      7 },
+    { "1", "+0x   1", ios::hex | ios::showbase | ios::showpos | ios::internal,
+      7 },
+    { "1", "+0x1   ", ios::hex | ios::showbase | ios::showpos | ios::left,
+      7 },
+
+    {  "123",    "7b", ios::hex },
+    {  "123",    "7B", ios::hex | ios::uppercase },
+    {  "123",  "0x7b", ios::hex | ios::showbase },
+    {  "123",  "0X7B", ios::hex | ios::showbase | ios::uppercase },
+    { "-123", "-0x7b", ios::hex | ios::showbase },
+    { "-123", "-0X7B", ios::hex | ios::showbase | ios::uppercase },
+
+    {  "123",   "173", ios::oct },
+    {  "123",   "173", ios::oct | ios::uppercase },
+    {  "123",  "0173", ios::oct | ios::showbase },
+    {  "123",  "0173", ios::oct | ios::showbase | ios::uppercase },
+    { "-123", "-0173", ios::oct | ios::showbase },
+    { "-123", "-0173", ios::oct | ios::showbase | ios::uppercase },
+
+  };
+
+  size_t  i;
+  mpz_t   z;
+
+  mpz_init (z);
+
+  for (i = 0; i < numberof (data); i++)
+    {
+      mpz_set_str_or_abort (z, data[i].z, 0);
+
+      if (option_check_standard
+	  && mpz_fits_slong_p (z)
+
+	  // no negatives or showpos in hex or oct
+	  && (((data[i].flags & ios::basefield) == ios::hex
+	       || (data[i].flags & ios::basefield) == ios::oct)
+	      ? (mpz_sgn (z) >= 0
+		 && ! (data[i].flags & ios::showpos))
+	      : 1)
+	  )
+	{
+	  ostringstream  got;
+	  long  n = mpz_get_si (z);
+	  CALL (got << n);
+	  if (got.str().compare (data[i].want) != 0)
+	    {
+	      cout << "check_mpz data[" << i
+		   << "] doesn't match standard ostream output\n";
+	      cout << "  z:     " << data[i].z << "\n";
+	      cout << "  n:     " << n << "\n";
+	      DUMP ();
+	    }
+	}
+
+      {
+	ostringstream  got;
+	CALL (got << z);
+	if (got.str().compare (data[i].want) != 0)
+	  {
+	    cout << "mpz operator<< wrong, data[" << i << "]\n";
+	    cout << "  z:     " << data[i].z << "\n";
+	    ABORT ();
+	  }
+      }
+    }
+
+  mpz_clear (z);
+}
+
+void
+check_mpq (void)
+{
+  static const struct {
+    const char     *q;
+    const char     *want;
+    ios::fmtflags  flags;
+    int            width;
+    int            precision;
+    char           fill;
+
+  } data[] = {
+
+    { "0", "0", ios::dec },
+    { "0", "0", ios::hex },
+    { "0", "0x0", ios::hex | ios::showbase },
+    { "0", "0X0", ios::hex | ios::showbase | ios::uppercase },
+
+    { "5/8", "5/8", ios::dec },
+    { "5/8", "0X5/0X8", ios::hex | ios::showbase | ios::uppercase },
+
+    // zero denominator with showbase
+    { "0/0",   "       0/0", ios::oct | ios::showbase, 10 },
+    { "0/0",   "       0/0", ios::dec | ios::showbase, 10 },
+    { "0/0",   "   0x0/0x0", ios::hex | ios::showbase, 10 },
+    { "123/0", "    0173/0", ios::oct | ios::showbase, 10 },
+    { "123/0", "     123/0", ios::dec | ios::showbase, 10 },
+    { "123/0", "  0x7b/0x0", ios::hex | ios::showbase, 10 },
+    { "123/0", "  0X7B/0X0", ios::hex | ios::showbase | ios::uppercase, 10 },
+    { "0/123", "    0/0173", ios::oct | ios::showbase, 10 },
+    { "0/123", "     0/123", ios::dec | ios::showbase, 10 },
+    { "0/123", "  0x0/0x7b", ios::hex | ios::showbase, 10 },
+    { "0/123", "  0X0/0X7B", ios::hex | ios::showbase | ios::uppercase, 10 },
+  };
+
+  size_t  i;
+  mpq_t   q;
+
+  mpq_init (q);
+
+#define mpq_integer_p(q)  (mpz_cmp_ui (mpq_denref(q), 1L) == 0)
+
+  for (i = 0; i < numberof (data); i++)
+    {
+      mpq_set_str_or_abort (q, data[i].q, 0);
+      MPZ_CHECK_FORMAT (mpq_numref (q));
+      MPZ_CHECK_FORMAT (mpq_denref (q));
+
+      if (option_check_standard
+	  && mpz_fits_slong_p (mpq_numref(q))
+	  && mpq_integer_p (q))
+	{
+	  ostringstream  got;
+	  long  n = mpz_get_si (mpq_numref(q));
+	  CALL (got << n);
+	  if (got.str().compare (data[i].want) != 0)
+	    {
+	      cout << "check_mpq data[" << i
+		   << "] doesn't match standard ostream output\n";
+	      cout << "  q:     " << data[i].q << "\n";
+	      cout << "  n:     " << n << "\n";
+	      DUMP ();
+	    }
+	}
+
+      {
+	ostringstream  got;
+	CALL (got << q);
+	if (got.str().compare (data[i].want) != 0)
+	  {
+	    cout << "mpq operator<< wrong, data[" << i << "]\n";
+	    cout << "  q:     " << data[i].q << "\n";
+	    ABORT ();
+	  }
+      }
+    }
+
+  mpq_clear (q);
+}
+
+
+void
+check_mpf (void)
+{
+  static const struct {
+    const char     *f;
+    const char     *want;
+    ios::fmtflags  flags;
+    int            width;
+    int            precision;
+    char           fill;
+
+  } data[] = {
+
+    { "0", "0",            ios::dec },
+    { "0", "+0",           ios::dec | ios::showpos },
+    { "0", "0.00000",      ios::dec | ios::showpoint },
+    { "0", "0",            ios::dec | ios::fixed },
+    { "0", "0.",           ios::dec | ios::fixed | ios::showpoint },
+    { "0", "0.000000e+00", ios::dec | ios::scientific },
+    { "0", "0.000000e+00", ios::dec | ios::scientific | ios::showpoint },
+
+    { "0", "0",          ios::dec, 0, 4 },
+    { "0", "0.000",      ios::dec | ios::showpoint, 0, 4 },
+    { "0", "0.0000",     ios::dec | ios::fixed, 0, 4 },
+    { "0", "0.0000",     ios::dec | ios::fixed | ios::showpoint, 0, 4 },
+    { "0", "0.0000e+00", ios::dec | ios::scientific, 0, 4 },
+    { "0", "0.0000e+00", ios::dec | ios::scientific | ios::showpoint, 0, 4 },
+
+    { "1", "1",       ios::dec },
+    { "1", "+1",      ios::dec | ios::showpos },
+    { "1", "1.00000", ios::dec | ios::showpoint },
+    { "1", "1",       ios::dec | ios::fixed },
+    { "1", "1.",      ios::dec | ios::fixed | ios::showpoint },
+    { "1", "1.000000e+00",   ios::dec | ios::scientific },
+    { "1", "1.000000e+00",  ios::dec | ios::scientific | ios::showpoint },
+
+    { "1", "1",          ios::dec,                   0, 4 },
+    { "1", "1.000",      ios::dec | ios::showpoint,  0, 4 },
+    { "1", "1.0000",     ios::dec | ios::fixed,      0, 4 },
+    { "1", "1.0000",     ios::dec | ios::fixed | ios::showpoint, 0, 4 },
+    { "1", "1.0000e+00", ios::dec | ios::scientific, 0, 4 },
+    { "1", "1.0000e+00", ios::dec | ios::scientific | ios::showpoint, 0, 4 },
+
+    { "-1", "-1",        ios::dec | ios::showpos },
+
+    { "-1", "  -1",      ios::dec, 4 },
+    { "-1", "-  1",      ios::dec | ios::internal, 4 },
+    { "-1", "-1  ",      ios::dec | ios::left, 4 },
+
+    { "-1", "  -0x1",    ios::hex | ios::showbase, 6 },
+    { "-1", "-0x  1",    ios::hex | ios::showbase | ios::internal, 6 },
+    { "-1", "-0x1  ",    ios::hex | ios::showbase | ios::left, 6 },
+
+    {    "1", "*********1", ios::dec, 10, 4, '*' },
+    { "1234", "******1234", ios::dec, 10, 4, '*' },
+    { "1234", "*****1234.", ios::dec | ios::showpoint, 10, 4, '*' },
+
+    { "12345", "1.23e+04", ios::dec, 0, 3 },
+
+    { "12345", "12345.", ios::dec | ios::fixed | ios::showpoint },
+
+    { "1.9999999",    "2",     ios::dec, 0, 1 },
+    { "1.0009999999", "1.001", ios::dec, 0, 4 },
+    { "1.0001",       "1",     ios::dec, 0, 4 },
+    { "1.0004",       "1",     ios::dec, 0, 4 },
+    { "1.000555",     "1.001", ios::dec, 0, 4 },
+
+    { "1.0002",       "1.000", ios::dec | ios::fixed, 0, 3 },
+    { "1.0008",       "1.001", ios::dec | ios::fixed, 0, 3 },
+
+    { "0", "0", ios::hex },
+    { "0", "0x0", ios::hex | ios::showbase },
+    { "0", "0X0", ios::hex | ios::showbase | ios::uppercase },
+    { "123",   "7b", ios::hex },
+    { "123", "0x7b", ios::hex | ios::showbase },
+    { "123", "0X7B", ios::hex | ios::showbase | ios::uppercase },
+
+    { "0", "0.000@+00", ios::hex | ios::scientific, 0, 3 },
+    { "256", "1.000@+02", ios::hex | ios::scientific, 0, 3 },
+
+    { "123",   "7.b@+01", ios::hex | ios::scientific, 0, 1 },
+    { "123",   "7.B@+01", ios::hex | ios::scientific | ios::uppercase, 0, 1 },
+    { "123", "0x7.b@+01", ios::hex | ios::scientific | ios::showbase, 0, 1 },
+    { "123", "0X7.B@+01",
+      ios::hex | ios::scientific | ios::showbase | ios::uppercase, 0, 1 },
+
+    { "1099511627776", "1.0@+10", ios::hex | ios::scientific, 0, 1 },
+    { "1099511627776", "1.0@+10",
+      ios::hex | ios::scientific | ios::uppercase, 0, 1 },
+
+    { "0.0625", "1.00@-01", ios::hex | ios::scientific, 0, 2 },
+
+    { "0", "0", ios::oct },
+    { "123",  "173", ios::oct },
+    { "123", "0173", ios::oct | ios::showbase },
+
+    // octal showbase suppressed for 0
+    { "0", "0", ios::oct | ios::showbase },
+    { ".125",    "00.1",  ios::oct | ios::showbase, 0, 1 },
+    { ".015625", "00.01", ios::oct | ios::showbase, 0, 2 },
+    { ".125",    "00.1",  ios::fixed | ios::oct | ios::showbase, 0, 1 },
+    { ".015625", "0.0",   ios::fixed | ios::oct | ios::showbase, 0, 1 },
+    { ".015625", "00.01", ios::fixed | ios::oct | ios::showbase, 0, 2 },
+
+    {  "0.125",  "1.000000e-01", ios::oct | ios::scientific },
+    {  "0.125", "+1.000000e-01", ios::oct | ios::scientific | ios::showpos },
+    { "-0.125", "-1.000000e-01", ios::oct | ios::scientific },
+    { "-0.125", "-1.000000e-01", ios::oct | ios::scientific | ios::showpos },
+
+    { "0", "0.000e+00", ios::oct | ios::scientific, 0, 3 },
+    { "256",  "4.000e+02", ios::oct | ios::scientific, 0, 3 },
+    { "256", "04.000e+02", ios::oct | ios::scientific | ios::showbase, 0, 3 },
+    { "256",  "4.000E+02", ios::oct | ios::scientific | ios::uppercase, 0, 3 },
+    { "256", "04.000E+02",
+      ios::oct | ios::scientific | ios::showbase | ios::uppercase, 0, 3 },
+
+    { "16777216",    "1.000000e+08", ios::oct | ios::scientific },
+    { "16777216",    "1.000000E+08",
+      ios::oct | ios::scientific | ios::uppercase },
+    { "16777216",   "01.000000e+08",
+      ios::oct | ios::scientific | ios::showbase },
+    { "16777216",   "01.000000E+08",
+      ios::oct | ios::scientific | ios::showbase | ios::uppercase },
+    { "16777216",  "+01.000000e+08",
+      ios::oct | ios::scientific | ios::showbase | ios::showpos },
+    { "16777216",  "+01.000000E+08", ios::oct | ios::scientific
+      | ios::showbase | ios::showpos | ios::uppercase },
+    { "-16777216", "-01.000000e+08",
+      ios::oct | ios::scientific | ios::showbase | ios::showpos },
+    { "-16777216", "-01.000000E+08", ios::oct | ios::scientific
+      | ios::showbase | ios::showpos | ios::uppercase },
+
+  };
+
+  size_t  i;
+  mpf_t   f, f2;
+  double  d;
+
+  mpf_init (f);
+  mpf_init (f2);
+
+  for (i = 0; i < numberof (data); i++)
+    {
+      mpf_set_str_or_abort (f, data[i].f, 0);
+
+      d = mpf_get_d (f);
+      mpf_set_d (f2, d);
+      if (option_check_standard && mpf_cmp (f, f2) == 0
+	  && ! (data[i].flags & (ios::hex | ios::oct | ios::showbase)))
+	{
+	  ostringstream  got;
+	  CALL (got << d);
+	  if (got.str().compare (data[i].want) != 0)
+	    {
+	      cout << "check_mpf data[" << i
+		   << "] doesn't match standard ostream output\n";
+	      cout << "  f:     " << data[i].f << "\n";
+	      cout << "  d:     " << d << "\n";
+	      DUMP ();
+	    }
+	}
+
+      {
+	ostringstream  got;
+	CALL (got << f);
+	if (got.str().compare (data[i].want) != 0)
+	  {
+	    cout << "mpf operator<< wrong, data[" << i << "]\n";
+	    cout << "  f:     " << data[i].f << "\n";
+	    ABORT ();
+	  }
+      }
+    }
+
+  mpf_clear (f);
+  mpf_clear (f2);
+}
+
+
+
+int
+main (int argc, char *argv[])
+{
+  if (argc > 1 && strcmp (argv[1], "-s") == 0)
+    option_check_standard = true;
+
+  tests_start ();
+
+  check_mpz ();
+  check_mpq ();
+  check_mpf ();
+
+  tests_end ();
+  return 0;
+}