timer

A minimal commandline timer in C

Screencast

Build

    make

Synopsis

    timer [[-m minutes] [-s seconds] | [-t minutes:seconds]] [-hv]

Options

   -m minutes
          number of minutes to count.

   -s seconds
          number of seconds to count.

   -t minutes:seconds
          timestring in minutes:seconds format

   -h     show help information

   -v     show version number

Examples

2 minutes timer

   timer -m 2

30 seconds timer

   timer -s 30

2 minutes 30 seconds timer

   timer -t 2:30

Issues to consider

• Use standard header for boolean
• Use block for if
• Initialize every variable with value
• Use unisigned int for min and sec
• timer -t : segfaults
• Either -s -m or -t flags
• Make clean target .PHONY
• Streamline multiple exits
• Try to be platform independent (unistd.h)
• Try to use safe versions of string functions
• Write comparisons in the way that left side is constant.
• const correctness on each function parameter and, if applicable, on variables