caldate 3 user commands djbwares caldate calendar dates #include <caldate.h> unsigned int \fBcaldate_fmt\fP(\fIs\fR,&\fIcd\fR); unsigned int \fBcaldate_scan\fP(\fIs\fR,&\fIcd\fR); struct caldate \fIcd\fR; char *\fIs\fR; A struct caldate value is a calendar date. It has three components: year, month (1...12), and day (1...31). caldate_fmt prints cd in ISO style (yyyy-mm-dd) into the character buffer s, without a terminating NUL. It returns the number of characters printed. s may be zero; then caldate_fmt returns the number of characters that would have been printed. caldate_scan reads a calendar date in ISO style from the beginning of the character buffer s and puts it into cd. It returns the number of characters read. If s does not start with an ISO-style date, caldate_scan returns 0. caldate_mjd3 caltime3 Original code and documentation by Daniel J. Bernstein. Converted to DocBook XML by Jonathan de Boyne Pollard.