How do I pass multiple ints into a vector at once

Question

Currently when I have to use vector push back   multiple times     The code I m currently using is    std  vector lt int gt  TestVector    TestVector push back 2     TestVector push back 5     TestVector push back 8     TestVector push back 11     TestVector push back 14     Is there a way to only use vector push back   once and just pass multiple values into the vector

User · Accepted Answer

Try pass array to vector   int arr      2 5 8 11 14   std  vector lt int gt  TestVector arr  arr 5     You could always call std  vector  assign to assign array to vector  call std  vector  insert to add multiple arrays   If you use C  11  you can try   std  vector lt int gt  v 2 5 8 11 14     Or   std  vector lt int gt  v    2 5 8 11 14

User · Answer

Yes you can  in your case  vector lt int gt TestVector   for int i 0 i lt 5 i           TestVector push back 2 3 i

User · Answer

You can do it with initializer list   std  vector lt unsigned int gt  array      First argument is an iterator to the element BEFORE which you will insert     In this case  you will insert before the end   iterator  which means appending value    at the end of the vector  array insert array end      1  2  3  4  5  6

User · Answer

These days  c  17  it s easy  auto const pusher    auto amp  v  noexcept         return   amp   auto amp  amp     e                                            v push back std  forward lt decltype e  gt  e                                                          pusher TestVector  2  5  8  11  14

User · Answer

You can also use vector  insert   std  vector lt int gt  v  int a 5     2  5  8  11  14    v insert v end    a  a 5     Edit   Of course  in real-world programming you should use   v insert v end    a  a  sizeof a  sizeof a 0          C  03 v insert v end    std  begin a   std  end a           C  11

User · Answer

These are the three most straight forward methods   1  Initialize from an initializer list   std  vector lt int gt  TestVector    2 5 8 11 14     2  Assign from an initializer list   std  vector lt int gt  TestVector  TestVector assign   2 5 8 11 14        overwrites TestVector   3  Insert an initializer list at a given point   std  vector lt int gt  TestVector      TestVector insert end TestVector    2 5 8 11 14        preserves previous elements

User · Answer

You can also use Boost Assignment   const list lt int gt  primes   list of 2  3  5  7  11    vector lt int gt  v   v    1 2 3 4 5 6 7 8 9

User · Answer

using vector  insert  const iterator position  initializer list il   http   www cplusplus com reference vector vector insert    include  lt iostream gt   include  lt vector gt   int main       std  vector lt int gt  vec    vec insert vec end    1 2 3 4      return 0

[c++] How do I pass multiple ints into a vector at once?

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