— Function: mpz_class::mpz_class (type n)

Construct an mpz_class. All the standard C++ types may be used, except long long and long double, and all the GMP C++ classes can be used, although conversions from mpq_class and mpf_class are explicit. Any necessary conversion follows the corresponding C function, for example double follows mpz_set_d (see Assigning Integers).

— Function: explicit mpz_class::mpz_class (const mpz_t z)

Construct an mpz_class from an mpz_t. The value in z is copied into the new mpz_class, there won't be any permanent association between it and z.

— Function: explicit mpz_class::mpz_class (const char *s, int base = 0)
— Function: explicit mpz_class::mpz_class (const string& s, int base = 0)

Construct an mpz_class converted from a string using mpz_set_str (see Assigning Integers).

If the string is not a valid integer, an std::invalid_argument exception is thrown. The same applies to operator=.

— Function: mpz_class operator"" _mpz (const char *str)

With C++11 compilers, integers can be constructed with the syntax 123_mpz which is equivalent to mpz_class("123").

— Function: mpz_class operator/ (mpz_class a, mpz_class d)
— Function: mpz_class operator% (mpz_class a, mpz_class d)

Divisions involving mpz_class round towards zero, as per the mpz_tdiv_q and mpz_tdiv_r functions (see Integer Division). This is the same as the C99 / and % operators.

The mpz_fdiv... or mpz_cdiv... functions can always be called directly if desired. For example,

          mpz_class q, a, d;
          ...
          mpz_fdiv_q (q.get_mpz_t(), a.get_mpz_t(), d.get_mpz_t());

— Function: mpz_class abs (mpz_class op)
— Function: int cmp (mpz_class op1, type op2)
— Function: int cmp (type op1, mpz_class op2)
— Function: bool mpz_class::fits_sint_p (void)
— Function: bool mpz_class::fits_slong_p (void)
— Function: bool mpz_class::fits_sshort_p (void)
— Function: bool mpz_class::fits_uint_p (void)
— Function: bool mpz_class::fits_ulong_p (void)
— Function: bool mpz_class::fits_ushort_p (void)
— Function: double mpz_class::get_d (void)
— Function: long mpz_class::get_si (void)
— Function: string mpz_class::get_str (int base = 10)
— Function: unsigned long mpz_class::get_ui (void)
— Function: int mpz_class::set_str (const char *str, int base)
— Function: int mpz_class::set_str (const string& str, int base)
— Function: int sgn (mpz_class op)
— Function: mpz_class sqrt (mpz_class op)
— Function: void mpz_class::swap (mpz_class& op)
— Function: void swap (mpz_class& op1, mpz_class& op2)

These functions provide a C++ class interface to the corresponding GMP C routines.

cmp can be used with any of the classes or the standard C++ types, except long long and long double.