int mpq_cmp (const mpq_t op1, const mpq_t op2) ¶int mpq_cmp_z (const mpq_t op1, const mpz_t op2) ¶Compare op1 and op2. Return a positive value if op1 > op2, zero if op1 = op2, and a negative value if op1 < op2.
To determine if two rationals are equal, mpq_equal is faster than
mpq_cmp.
int mpq_cmp_ui (const mpq_t op1, unsigned long int num2, unsigned long int den2) ¶int mpq_cmp_si (const mpq_t op1, long int num2, unsigned long int den2) ¶Compare op1 and num2/den2. Return a positive value if op1 > num2/den2, zero if op1 = num2/den2, and a negative value if op1 < num2/den2.
num2 and den2 are allowed to have common factors.
These functions are implemented as macros and evaluate their arguments multiple times.
int mpq_sgn (const mpq_t op) ¶Return +1 if op > 0, 0 if op = 0, and -1 if op < 0.
This function is actually implemented as a macro. It evaluates its argument multiple times.
int mpq_equal (const mpq_t op1, const mpq_t op2) ¶Return non-zero if op1 and op2 are equal, zero if they are
non-equal. Although mpq_cmp can be used for the same purpose, this
function is much faster.