Node:Comparing Rationals, Next:Applying Integer Functions, Previous:Rational Arithmetic, Up:Rational Number Functions
| int mpq_cmp (mpq_t op1, mpq_t op2) | Function |
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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, |
| 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) | Macro |
|
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. |
| int mpq_sgn (mpq_t op) | Macro |
|
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. |
| int mpq_equal (mpq_t op1, mpq_t op2) | Function |
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.
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