__isl_give isl_constraint *isl_constraint_set_coefficient(
__isl_take isl_constraint *constraint,
enum isl_dim_type type, int pos, isl_int v);
__isl_give isl_constraint *isl_constraint_set_coefficient_si(
__isl_take isl_constraint *constraint,
enum isl_dim_type type, int pos, int v);
__isl_give isl_constraint *isl_constraint_set_coefficient(
__isl_take isl_constraint *constraint,
enum isl_dim_type type, int pos, isl_int v);
__isl_give isl_constraint *isl_constraint_set_coefficient_si(
__isl_take isl_constraint *constraint,
enum isl_dim_type type, int pos, int v);