Xref: utzoo comp.lang.c:15562 comp.sys.ibm.pc:23312
Path: utzoo!attcan!uunet!lll-winken!ames!mailrus!cornell!uw-beaver!uw-june!ka
From: ka@june.cs.washington.edu (Kenneth Almquist)
Newsgroups: comp.lang.c,comp.sys.ibm.pc
Subject: Re: Microsoft C 5.1 question
Keywords: Printf formats
Message-ID: <6951@june.cs.washington.edu>
Date: 16 Jan 89 12:46:45 GMT
References: <104@rpi.edu> <198@broadway.UUCP>
Organization: U of Washington, Computer Science, Seattle
Lines: 19

]    if(minute < 10)
]        sprintf(min_str, "0%d", minute);
]    else
]        sprintf(min_str, "%d", minute);
]
]    if(second < 10)
]        sprintf(sec_str, "0%d", second);
]    else
]        sprintf(sec_str, "%d", second);
]
]    printf("%2d:%s:%s", hour, min_str, sec_str);

This can be shortened to

     printf("%2d:%.2d:%.2d", hour, minute, second);

A "." introduces a precision, which specifies the minimum number of
digits to print.
				Kenneth Almquist