| # round.awk --- do normal rounding | |
| # | |
| # Arnold Robbins, arnold@skeeve.com, Public Domain | |
| # August, 1996 | |
| function round(x, ival, aval, fraction) | |
| { | |
| ival = int(x) # integer part, int() truncates | |
| # see if fractional part | |
| if (ival == x) # no fraction | |
| return ival # ensure no decimals | |
| if (x < 0) { | |
| aval = -x # absolute value | |
| ival = int(aval) | |
| fraction = aval - ival | |
| if (fraction >= .5) | |
| return int(x) - 1 # -2.5 --> -3 | |
| else | |
| return int(x) # -2.3 --> -2 | |
| } else { | |
| fraction = x - ival | |
| if (fraction >= .5) | |
| return ival + 1 | |
| else | |
| return ival | |
| } | |
| } | |