flecs/rule_2iterable_8inl_source.html

iter_iterable<Components...>& set_var(const char *name, flecs::entity_t value) {

    ecs_rule_iter_t *rit = &m_it.priv.iter.rule;

    int var_id = ecs_rule_find_var(rit->rule, name);

    ecs_assert(var_id != -1, ECS_INVALID_PARAMETER, name);

    ecs_iter_set_var(&m_it, var_id, value);

    return *this;

}


ecs_assert
#define ecs_assert(condition, error_code,...)
Assert.
Definition log.h:351

ecs_rule_find_var
FLECS_API int32_t ecs_rule_find_var(const ecs_rule_t *rule, const char *name)
Find variable index.

ecs_iter_set_var
void ecs_iter_set_var(ecs_iter_t *it, int32_t var_id, ecs_entity_t entity)
Set value for iterator variable.