c++ - Align text and change amount of spaces -

i'm trying format string, becouse have 2 strings 1 contain: "1" ,

second contain: "test" , want output whole string space as:

1 test

i did saying:

printf("%-10s %s", "1", "test");

but how change space " %-10s " without changing format?

int amount_of_space = 10;  like: printf("%-*s %s", "1", "test", amount_of_space)

how do that??? in c or c++, please me out

printf("%-*s %s", amount_of_space, "1", "test" ) ;

the * comes first in format string - hence parameter amount_of_space has come first after comma.

i.e in format string order *, s & s - after comma, need whatever fills in *, first string , 2nd string.

Detect