Explain to me iomanip

[alex067]

Can someone explain to me what this statement does;

cout << fixed << showpoint << setprecision(2);

[megatron 0]

http://www.cplusplus.com/reference/iomanip/

[alex067]

ok that literally did not explain my question at all.

[shadowCODE]

The stream manipulator fixed indicates that floating-point values should be
output in so-called fixed-point format, as opposed to scientific notation

showpoint forces the decimal point to appear. e.g
If showpoint is specified without fixed , then trailing zeros will not print

setprecision(x) prints the number with x number of decimal places.

exmple.

double test = 2.0;

cout<<fixed<<setprecision(4)<<test;   //ouput: 2
cout<<fixex<<showpoint<<setprecision(2)<<test;   //output:  2.00
cout<<showpoint<<setprecision(2)<<test;     //output: 2

[kbw]

ok that literally did not explain my question at all.

If you took the time to read it, you'll find it does; albeit, fixed is not described.