Function Fprintf

internal/rfmt/print.go:210–216

These routines end in 'f' and take a format string. Fprintf formats according to a format specifier and writes to w. It returns the number of bytes written and any write error encountered.

(w io.Writer, format string, a ...interface{})

// Fprintf formats according to a format specifier and writes to w.
// It returns the number of bytes written and any write error encountered.
func Fprintf(w io.Writer, format string, a ...interface{}) (n int, err error) {
	p := newPrinter()
	p.doPrintf(format, a)
	n, err = w.Write([]byte(p.buf.TakeRedactableBytes()))
	p.free()
	return
}

// Printf formats according to a format specifier and writes to standard output.
// It returns the number of bytes written and any write error encountered.