本文整理汇总了C++中unsigned_vector::back方法的典型用法代码示例。如果您正苦于以下问题：C++ unsigned_vector::back方法的具体用法？C++ unsigned_vector::back怎么用？C++ unsigned_vector::back使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类unsigned_vector的用法示例。
在下文中一共展示了unsigned_vector::back方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: pop_bound
/**
\brief From \c cont which is list of indexes of tail literals of rule \c r, select
the index pointing to a literal with at least one bound variable that will be the next
bound literal in the process of creating an adorned rule. If all literals are unbound,
return -1.
*/
int mk_magic_sets::pop_bound(unsigned_vector & cont, rule * r, const var_idx_set & bound_vars) {
float best_cost;
int candidate_index = -1;
unsigned n = cont.size();
for (unsigned i=0; i<n; i++) {
app * lit = r->get_tail(cont[i]);
unsigned bound_cnt = get_bound_arg_count(lit, bound_vars);
if (bound_cnt==0) {
continue;
}
float cost = get_unbound_cost(lit, bound_vars);
if (candidate_index==-1 || cost<best_cost) {
best_cost = cost;
candidate_index = i;
}
}
if (candidate_index==-1) {
return -1;
}
if (candidate_index != static_cast<int>(n-1)) {
std::swap(cont[candidate_index], cont[n-1]);
}
unsigned res = cont.back();
cont.pop_back();
return res;
}