C++ Domanda nubbia

[zergling]

Ciao a tutti,
Apro questo post perche vorrei sapere che cosa significano e che cosa fanno queste due linee di comando


cout.setf(ios::fixed);

cout.setf(ios::showpoint);

Ciao a grazie in anticipo :)

[cavay]

sono dei "manipolatori" e servono a formattare l'output.
Riporto:

left left-justifies the output
right right-justifies the output
showpoint displays decimal point and trailing zeros for all floating point numbers, even if the decimal places are not needed.
uppercase displays the "e" in E-notation as "E" rather than "e"
showpos displays a leading plus sign before positive values
scientific displays floating point numbers in scientific ("E") notation
fixed displays floating point numbers in normal notation - no trailing zeroes and no scientific notation