diff options
Diffstat (limited to 'src/util/integer_gmp_imp.h')
-rw-r--r-- | src/util/integer_gmp_imp.h | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/src/util/integer_gmp_imp.h b/src/util/integer_gmp_imp.h index c1d46ca65..60cee3937 100644 --- a/src/util/integer_gmp_imp.h +++ b/src/util/integer_gmp_imp.h @@ -151,7 +151,8 @@ public: return *this; } - /** Raise this Integer to the power <code>exp</code>. + /** + * Raise this Integer to the power <code>exp</code>. * * @param exp the exponent */ @@ -161,6 +162,22 @@ public: return Integer( result ); } + /** + * Return the greatest common divisor of this integer with another. + */ + Integer gcd(const Integer& y) const { + mpz_class result; + mpz_gcd(result.get_mpz_t(), d_value.get_mpz_t(), y.d_value.get_mpz_t()); + return Integer(result); + } + + /** + * Return the absolute value of this integer. + */ + Integer abs() const { + return d_value >= 0 ? *this : -*this; + } + std::string toString(int base = 10) const{ return d_value.get_str(base); } |