mpir/tests/cxx/t-assign.cc

/* Test mp*_class assignment operators.

Copyright 2001, 2002, 2003 Free Software Foundation, Inc.

This file is part of the GNU MP Library.

The GNU MP 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 MP 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 MP Library; see the file COPYING.LIB.  If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
MA 02110-1301, USA. */

#include "config.h"

#include <iostream>
#include <string>

#include "gmp.h"
#include "gmpxx.h"
#include "gmp-impl.h"
#include "tests.h"

using namespace std;


void
check_mpz (void)
{
  // operator=(const mpz_class &)
  {
    mpz_class a(123), b;
    b = a; ASSERT_ALWAYS(b == 123);
  }

  // template <class T, class U> operator=(const __gmp_expr<T, U> &)
  // not tested here, see t-unary.cc, t-binary.cc

  // operator=(signed char)
  {
    signed char a = -127;
    mpz_class b;
    b = a; ASSERT_ALWAYS(b == -127);
  }

  // operator=(unsigned char)
  {
    unsigned char a = 255;
    mpz_class b;
    b = a; ASSERT_ALWAYS(b == 255);
  }

  // either signed or unsigned char, machine dependent
  {
    mpz_class a;
    a = 'A'; ASSERT_ALWAYS(a == 65);
  }
  {
    mpz_class a;
    a = 'z'; ASSERT_ALWAYS(a == 122);
  }

  // operator=(signed int)
  {
    signed int a = 0;
    mpz_class b;
    b = a; ASSERT_ALWAYS(b == 0);
  }
  {
    signed int a = -123;
    mpz_class b;
    b = a; ASSERT_ALWAYS(b == -123);
  }
  {
    signed int a = 32767;
    mpz_class b;
    b = a; ASSERT_ALWAYS(b == 32767);
  }

  // operator=(unsigned int)
  {
    unsigned int a = 65535u;
    mpz_class b;
    b = a; ASSERT_ALWAYS(b == 65535u);
  }

  // operator=(signed short int)
  {
    signed short int a = -12345;
    mpz_class b;
    b = a; ASSERT_ALWAYS(b == -12345);
  }

  // operator=(unsigned short int)
  {
    unsigned short int a = 54321u;
    mpz_class b;
    b = a; ASSERT_ALWAYS(b == 54321u);
  }

  // operator=(signed long int)
  {
    signed long int a = -1234567890L;
    mpz_class b;
    b = a; ASSERT_ALWAYS(b == -1234567890L);
  }

  // operator=(unsigned long int)
  {
    unsigned long int a = 3456789012UL;
    mpz_class b;
    b = a; ASSERT_ALWAYS(b == 3456789012UL);
  }

  // operator=(float)
  {
    float a = 123.0;
    mpz_class b;
    b = a; ASSERT_ALWAYS(b == 123);
  }

  // operator=(double)
  {
    double a = 0.0;
    mpz_class b;
    b = a; ASSERT_ALWAYS(b == 0);
  }
  {
    double a = -12.375;
    mpz_class b;
    b = a; ASSERT_ALWAYS(b == -12);
  }
  {
    double a = 6.789e+3;
    mpz_class b;
    b = a; ASSERT_ALWAYS(b == 6789);
  }
  {
    double a = 9.375e-1;
    mpz_class b;
    b = a; ASSERT_ALWAYS(b == 0);
  }

  // operator=(long double)
  // currently not implemented

  // operator=(const char *)
  {
    const char *a = "1234567890";
    mpz_class b;
    b = a; ASSERT_ALWAYS(b == 1234567890L);
  }

  // operator=(const std::string &)
  {
    string a("1234567890");
    mpz_class b;
    b = a; ASSERT_ALWAYS(b == 1234567890L);
  }

  // operator=(const char *) with invalid
  {
    try {
      const char *a = "abc";
      mpz_class b;
      b = a;
      ASSERT_ALWAYS (0);  /* should not be reached */
    } catch (invalid_argument) {
    }
  }

  // operator=(const std::string &) with invalid
  {
    try {
      string a("def");
      mpz_class b;
      b = a;
      ASSERT_ALWAYS (0);  /* should not be reached */
    } catch (invalid_argument) {
    }
  }
}

void
check_mpq (void)
{
  // operator=(const mpq_class &)
  {
    mpq_class a(1, 2), b;
    b = a; ASSERT_ALWAYS(b == 0.5);
  }

  // template <class T, class U> operator=(const __gmp_expr<T, U> &)
  // not tested here, see t-unary.cc, t-binary.cc

  // operator=(signed char)
  {
    signed char a = -127;
    mpq_class b;
    b = a; ASSERT_ALWAYS(b == -127);
  }

  // operator=(unsigned char)
  {
    unsigned char a = 255;
    mpq_class b;
    b = a; ASSERT_ALWAYS(b == 255);
  }

  // either signed or unsigned char, machine dependent
  {
    mpq_class a;
    a = 'A'; ASSERT_ALWAYS(a == 65);
  }
  {
    mpq_class a;
    a = 'z'; ASSERT_ALWAYS(a == 122);
  }

  // operator=(signed int)
  {
    signed int a = 0;
    mpq_class b;
    b = a; ASSERT_ALWAYS(b == 0);
  }
  {
    signed int a = -123;
    mpq_class b;
    b = a; ASSERT_ALWAYS(b == -123);
  }
  {
    signed int a = 32767;
    mpq_class b;
    b = a; ASSERT_ALWAYS(b == 32767);
  }

  // operator=(unsigned int)
  {
    unsigned int a = 65535u;
    mpq_class b;
    b = a; ASSERT_ALWAYS(b == 65535u);
  }

  // operator=(signed short int)
  {
    signed short int a = -12345;
    mpq_class b;
    b = a; ASSERT_ALWAYS(b == -12345);
  }

  // operator=(unsigned short int)
  {
    unsigned short int a = 54321u;
    mpz_class b;
    b = a; ASSERT_ALWAYS(b == 54321u);
  }

  // operator=(signed long int)
  {
    signed long int a = -1234567890L;
    mpq_class b;
    b = a; ASSERT_ALWAYS(b == -1234567890L);
  }

  // operator=(unsigned long int)
  {
    unsigned long int a = 3456789012UL;
    mpq_class b;
    b = a; ASSERT_ALWAYS(b == 3456789012UL);
  }

  // operator=(float)
  {
    float a = 123.0;
    mpq_class b;
    b = a; ASSERT_ALWAYS(b == 123);
  }

  // operator=(double)
  {
    double a = 0.0;
    mpq_class b;
    b = a; ASSERT_ALWAYS(b == 0);
  }
  {
    double a = -12.375;
    mpq_class b;
    b = a; ASSERT_ALWAYS(b == -12.375);
  }
  {
    double a = 6.789e+3;
    mpq_class b;
    b = a; ASSERT_ALWAYS(b == 6789);
  }
  {
    double a = 9.375e-1;
    mpq_class b;
    b = a; ASSERT_ALWAYS(b == 0.9375);
  }

  // operator=(long double)
  // currently not implemented

  // operator=(const char *)
  {
    const char *a = "1234567890";
    mpq_class b;
    b = a; ASSERT_ALWAYS(b == 1234567890L);
  }

  // operator=(const std::string &)
  {
    string a("1234567890");
    mpq_class b;
    b = a; ASSERT_ALWAYS(b == 1234567890L);
  }

  // operator=(const char *) with invalid
  {
    try {
      const char *a = "abc";
      mpq_class b;
      b = a;
      ASSERT_ALWAYS (0);  /* should not be reached */
    } catch (invalid_argument) {
    }
  }

  // operator=(const std::string &) with invalid
  {
    try {
      string a("def");
      mpq_class b;
      b = a;
      ASSERT_ALWAYS (0);  /* should not be reached */
    } catch (invalid_argument) {
    }
  }
}

void
check_mpf (void)
{
  // operator=(const mpf_class &)
  {
    mpf_class a(123), b;
    b = a; ASSERT_ALWAYS(b == 123);
  }

  // template <class T, class U> operator=(const __gmp_expr<T, U> &)
  // not tested here, see t-unary.cc, t-binary.cc

  // operator=(signed char)
  {
    signed char a = -127;
    mpf_class b;
    b = a; ASSERT_ALWAYS(b == -127);
  }

  // operator=(unsigned char)
  {
    unsigned char a = 255;
    mpf_class b;
    b = a; ASSERT_ALWAYS(b == 255);
  }

  // either signed or unsigned char, machine dependent
  {
    mpf_class a;
    a = 'A'; ASSERT_ALWAYS(a == 65);
  }
  {
    mpf_class a;
    a = 'z'; ASSERT_ALWAYS(a == 122);
  }

  // operator=(signed int)
  {
    signed int a = 0;
    mpf_class b;
    b = a; ASSERT_ALWAYS(b == 0);
  }
  {
    signed int a = -123;
    mpf_class b;
    b = a; ASSERT_ALWAYS(b == -123);
  }
  {
    signed int a = 32767;
    mpf_class b;
    b = a; ASSERT_ALWAYS(b == 32767);
  }

  // operator=(unsigned int)
  {
    unsigned int a = 65535u;
    mpf_class b;
    b = a; ASSERT_ALWAYS(b == 65535u);
  }

  // operator=(signed short int)
  {
    signed short int a = -12345;
    mpf_class b;
    b = a; ASSERT_ALWAYS(b == -12345);
  }

  // operator=(unsigned short int)
  {
    unsigned short int a = 54321u;
    mpf_class b;
    b = a; ASSERT_ALWAYS(b == 54321u);
  }

  // operator=(signed long int)
  {
    signed long int a = -1234567890L;
    mpf_class b;
    b = a; ASSERT_ALWAYS(b == -1234567890L);
  }

  // operator=(unsigned long int)
  {
    unsigned long int a = 3456789012UL;
    mpf_class b;
    b = a; ASSERT_ALWAYS(b == 3456789012UL);
  }

  // operator=(float)
  {
    float a = 123.0;
    mpf_class b;
    b = a; ASSERT_ALWAYS(b == 123);
  }

  // operator=(double)
  {
    double a = 0.0;
    mpf_class b;
    b = a; ASSERT_ALWAYS(b == 0);
  }
  {
    double a = -12.375;
    mpf_class b;
    b = a; ASSERT_ALWAYS(b == -12.375);
  }
  {
    double a = 6.789e+3;
    mpf_class b;
    b = a; ASSERT_ALWAYS(b == 6789);
  }
  {
    double a = 9.375e-1;
    mpf_class b;
    b = a; ASSERT_ALWAYS(b == 0.9375);
  }

  // operator=(long double)
  // currently not implemented

  // operator=(const char *)
  {
    const char *a = "1234567890";
    mpf_class b;
    b = a; ASSERT_ALWAYS(b == 1234567890L);
  }

  // operator=(const std::string &)
  {
    string a("1234567890");
    mpf_class b;
    b = a; ASSERT_ALWAYS(b == 1234567890L);
  }

  // operator=(const char *) with invalid
  {
    try {
      const char *a = "abc";
      mpf_class b;
      b = a;
      ASSERT_ALWAYS (0);  /* should not be reached */
    } catch (invalid_argument) {
    }
  }

  // operator=(const std::string &) with invalid
  {
    try {
      string a("def");
      mpf_class b;
      b = a;
      ASSERT_ALWAYS (0);  /* should not be reached */
    } catch (invalid_argument) {
    }
  }
}



int
main (void)
{
  tests_start();

  check_mpz();
  check_mpq();
  check_mpf();

  tests_end();
  return 0;
}