I'm trying to get the following output using setw and setfill:
OPTIONS:
<expression>
The usual operators +, -, *, / and % (remainder)
Expressions are fixed-point decimal numbers, and
Parentheses () and corchetes {} may be used for grouping.
I'm trying like this:
cout << "OPTIONS:" << '\n';
cout << "\t<expression>\n";
cout << '\t' << setw(3) << setfill(' ') << "The usual operators +, -, *, / and % (remainder)\n";
cout << '\t' << setw(3) << setfill(' ') << "Expressions are fixed-point decimal numbers, and\n";
cout << '\t' << setw(3) << setfill(' ') << "Parentheses () and corchetes {} may be used for grouping.\n\n";
std::setw
is a great tool for printing data with varying length in a table format. You specify the width of a column and spaces will get filled in automatically until the specified column width is reached. However, if you need a fixed number of spaces it's easier to hard code them: cout << " "
. If you need the same indentation many times you might want to define this as a constant
auto indent = string(3, ' ');
cout << indent << ...;
This allows you to easily adjust the indentation later if needed.
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