Why are the double vector elements being rounded up when printed?

Asked Nov 28 '22 at 18:18

Active Nov 28 '22 at 18:21

Viewed 52 times

Basically I'm trying to print a vector of type double, but the print values are either rounded up or just weird. Maybe there's something I'm missing in the print statements since I'm not too familiar with vectors.

vector <double> abcd = { 123456789,554.55,13451.79 };

//print
cout << right << setw(75) << "Total Purchase:" << abcd [0] << endl;
    cout << right << setw(75) << "" << abcd [1] << "$" << endl;
    cout << right << setw(75) << "" << abcd [2] << "€" << endl;

Expecting them to be printed normally but the output for each is -

1.23457e+08     
554.55     
13451.8

edited Nov 28 '22 at 18:21

463035818_is_not_an_ai

109,796
11
89
185

asked Nov 28 '22 at 18:18

mzz

3

See [`std::setprecision`](https://en.cppreference.com/w/cpp/io/manip/setprecision) especially the example. – Richard Critten Nov 28 '22 at 18:21
4

what is "normally" ? – 463035818_is_not_an_ai Nov 28 '22 at 18:22
C++20 `std::format` can be more handy: https://godbolt.org/z/b7oEM7ob7 or `fmt` library. – Marek R Nov 28 '22 at 18:42

Why are the double vector elements being rounded up when printed?

0 Answers0