本文整理汇总了C++中Vec::empty方法的典型用法代码示例。如果您正苦于以下问题：C++ Vec::empty方法的具体用法？C++ Vec::empty怎么用？C++ Vec::empty使用的例子？那么恭喜您, 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Vec的用法示例。
在下文中一共展示了Vec::empty方法的11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: main
int main(int argc, char* argv[])
{
int rank,size,offset;
MPI_Init(&argc, &argv);
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
MPI_Comm_size(MPI_COMM_WORLD, &size);
ostringstream convert;
convert << rank+1;
string file = "data"+ convert.str();
int numLocal, totalNode;
Graph g(rank,file);
Matpair buf(4);
Vec F;
numLocal = g.localNode();
offset = rank*numLocal;
int root = 512;
int finish,localfinish;
int parents[numLocal];
for (int i=0;i<numLocal;i++){
parents[i] = -1;
}
if (rank == root/numLocal){
F.push_back(root);
parents[root-offset] = -2;}
localfinish = !F.empty();
Vec nxFr;
int dep=0;
int depth[numLocal];
for (int i = 0; i < numLocal; i++){
depth[i]=0;
}
while(1){
localfinish=!F.empty();
MPI_Barrier(MPI_COMM_WORLD);
MPI_Allreduce(&localfinish,&finish,1,MPI_INT,MPI_SUM,MPI_COMM_WORLD);
if (finish==0)
break;
if (!F.empty()){
for (Vec::iterator i = F.begin();i != F.end(); i++){
depth[*i-offset] = dep+1;
cout << "node "<< *i <<" depth: "<<dep+1<<endl;
}
}
nextFrBuf(g,F,rank,size,buf,offset);
alltoallPersonalized(buf,parents,nxFr,size,offset);
F=nxFr;
dep++;
}
MPI_Finalize();
return 0;
}示例2: update_in_a_cycle
void Instruction::update_in_a_cycle() {
++Instruction::cur_op_id;
Vec<std::pair<Instruction *,unsigned>> stack;
stack.emplace_back( this, 0 );
while ( true ) {
std::pair<Instruction *,unsigned> t = stack.back();
// instruction
if ( t.first->op_id == Instruction::cur_op_id ) {
stack.pop_back();
if ( t.first->num_in_dfs_stack >= 0 )
for( unsigned j = t.first->num_in_dfs_stack; j < stack.size(); ++j )
stack[ j ].first->in_a_cycle = true;
} else {
t.first->op_id = Instruction::cur_op_id;
t.first->num_in_dfs_stack = stack.size() - 1;
}
// next
while ( stack.back().second >= stack.back().first->next.size() ) {
stack.back().first->num_in_dfs_stack = - 1;
stack.pop_back();
if ( stack.empty() )
return;
}
stack.emplace_back( stack.back().first->next[ stack.back().second++ ].inst, 0 );
}
}示例3: get
uint32_t get(uint32_t pos) const
{
assert(!v_.empty() && v_[0] == 0);
Vec::const_iterator i = std::lower_bound(v_.begin(), v_.end(), pos + 1);
if (i == v_.end()) return (uint32_t)v_.size() - 1;
return (uint32_t)std::distance(v_.begin(), i) - 1;
}示例4:
TEST(VectorMapTest, EmptyTest)
{
Vec v;
ASSERT_TRUE(v.empty());
ASSERT_EQ(0, v.size());
ASSERT_TRUE(v.end() == v.find(10));
}示例5: optimistic_median
// median of the nonzero elements of `s.homework', or `0' if no such elements exist
double optimistic_median(const Student_info& s)
{
Vec<double> nonzero;
remove_copy(s.homework.begin(), s.homework.end(),
back_inserter(nonzero), 0);
if (nonzero.empty())
return grade(s.midterm, s.final, 0);
else
return grade(s.midterm, s.final, median(nonzero));示例6: repack
void repack() {
// dump();
const int oWidth = (m_vec.size() - 1 - 1) / 2, nWidth = 2 * oWidth; // half widths
Vec v(2 * nWidth + 1 + 1);
copy(m_vec.begin() + 1, m_vec.end(), v.begin() + oWidth + 1);
if ( ! m_vec.empty())
v[0] = m_vec[0];
swap(m_vec, v);
m_minKey -= oWidth; m_maxKey += oWidth;
}示例7: pop
T pop() {
if (front->empty()) {
js::Reverse(back->begin(), back->end());
Vec *tmp = front;
front = back;
back = tmp;
}
T item = front->back();
front->popBack();
return item;
} 示例8: nextFrBuf
void nextFrBuf(const Graph &g, Vec Fr, int rank, int size, Matpair &buf, int offset )
{
if (Fr.empty())
return;
int r, frNode;
buf.clear();
Vec::iterator i,j;
for(i = Fr.begin(); i != Fr.end(); i++){
frNode = *i - offset;
for (j = g.adj[frNode].begin(); j != g.adj[frNode].end(); j++){
r = *j/g.localNode();
buf[r].push_back(make_pair(*i,*j));
}
}
}示例9: empty
bool empty() { return front->empty() && back->empty(); }示例11: append
void append(uint32_t pos)
{
assert(v_.empty() ? pos == 0 : v_.back() < pos);
v_.push_back(pos);
}