Comparing scalars

Function: int ap_scalar_infty (ap_scalar_t* op)

Return -1 if op is set to +infty, -1 if set to -infty, and 0 otherwise.

Function: int ap_scalar_sgn (ap_scalar_t* op)

Return the sign of op (+1, 0 or -1).

Function: int ap_scalar_cmp (ap_scalar_t* op1, ap_scalar_t* op2)

Function: int ap_scalar_cmp_int (ap_scalar_t* op1, int op2)

Exact comparison between two scalars (resp. a scalar and an integer).

Return -1 if op1 is less than op2, 0 if they are equal, and +1 if op1 is greater than op2.

Function: bool ap_scalar_equal (ap_scalar_t* op1, ap_scalar_t* op2);

Function: bool ap_scalar_equal_int (ap_scalar_t* op1, int op2);

Equality test between two scalars (resp. a scalar and an integer).

Return true if equality.