Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
479 views
in Technique[技术] by (71.8m points)

c++: Error: variable length array of non-POD element type

I basically have

int x;
cout << "Please enter how many classrooms there are: ";
cin >> x;
classrooms bunchaClassrooms[x]; //classrooms is a previously declared class.

For some reason it gives the error 'variable length array of non-POD element type 'x'' and I have no idea why, if I were to use a vector of classrooms instead, how could i easily populate it (using a for loop i'm guessing) depending on the user's input.

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

You can use std::vector:

std::vector<classrooms> bunchaClassrooms;
for (int i = 0; i < x; ++i)
{
  classrooms c;
  <... enter classrooms info ...>
  v.push_back(c);
}

Array with non-constant boundary isn't good.


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...