go - Is there any standard library to convert float64 to string with fix width with maximum number of significant digits?

Question

Imagine for printing in a 12 fixed width table we need printing float64 numbers:

fmt.Printf("%12.6g
", 9.405090880450127e+119) //"9.40509e+119"
fmt.Printf("%12.6g
", 0.1234567890123)        //"    0.123457"
fmt.Printf("%12.6g
", 123456789012.0)         //" 1.23457e+11"

We prefer 0.1234567890 to " 0.123457" we lose 6 significant digits.
We prefer 123456789012 to " 1.23457e+11" we lose 6 significant digits.

Is there any standard library to convert float64 to string with fix width with maximum number of significant digits? Thanks in Advance.

Answer 1

Waitting for answers