code:round

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 — code:round [2015/11/19 15:19] (current)michfiel created 2015/11/19 15:19 michfiel created 2015/11/19 15:19 michfiel created Line 1: Line 1: + ==== round ==== + + http://www.cplusplus.com/ + \\ + round() Returns the integral value that is nearest to x, with halfway cases rounded away from zero \\ + floor() Rounds x downward, returning the largest integral value that is not greater than x \\ + ceil() Rounds x upward, returning the smallest integral value that is not less than x \\ + trunc() The nearest integral value that is not larger in magnitude than x (as a floating-point value) \\ + \\ + + ^  value^  round^  floor^  ceil^  trunc^ + |  2.3|  2.0|  2.0|  3.0|  2.0| + |  3.8|  4.0|  3.0|  4.0|  3.0| + |  5.5|  6.0|  5.0|  6.0|  5.0| + |  -2.3|  -2.0|  -3.0|  -2.0|  -2.0| + |  -3.8|  -4.0|  -4.0|  -3.0|  -3.0| + |  -5.5|  -6.0|  -6.0|  -5.0|  -5.0| + + + * rint() Rounds x to an integral value, using the rounding direction specified by fegetround + * near() The value of x rounded to a nearby integral (as a floating-point value) + 