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# (gmp.info.gz) Comparing Rationals Info Catalog (gmp.info.gz) Rational Arithmetic (gmp.info.gz) Rational Number Functions (gmp.info.gz) Applying Integer Functions
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Comparison Functions
====================

- Function: int mpq_cmp (mpq_t OP1, mpq_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'.

- Macro: int mpq_cmp_ui (mpq_t OP1, unsigned long int NUM2, unsigned
long int DEN2)
- Macro: int mpq_cmp_si (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 a macros and evaluate their
arguments multiple times.

- Macro: int mpq_sgn (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
arguments multiple times.

- Function: int mpq_equal (mpq_t OP1, 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.

``` Info Catalog (gmp.info.gz) Rational Arithmetic (gmp.info.gz) Rational Number Functions (gmp.info.gz) Applying Integer Functions
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