PEPRBV%CFAAMP.BITNET@husc6.harvard.EDU (Bob Babcock) (12/22/87)
Reading the description of the format string for printf, it seemed to me that "%10 " might be the equivalent of 10X in Fortran, that is, insert 10 spaces. I tested this on my MS-DOS C and it worked, but on my OS-9/68K C it did not. Which of these is correct, or is this a detail which can legally vary? (Both compilers claim to implement K&R C, not ANSI C.)
ark@alice.UUCP (12/23/87)
In article <10954@brl-adm.ARPA>, PEPRBV%CFAAMP.BITNET@husc6.harvard.EDU writes: > Reading the description of the format string for printf, it seemed > to me that "%10 " might be the equivalent of 10X in Fortran, that > is, insert 10 spaces. "%10 " is an illegal format string. A blank space is a format modifier, like 'l', that says that you want printf to write a space in place of a sign when the number is zero or positive. However, it has to have something to modify. So, for instance "%g" will print 3 as "3" and -3 as "-3", but "% g" will print 3 as " 3" and -3 as "-3".