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Manual Reference Pages  - nearest (3)

NAME
nearest(3f) - [FORTRAN:INTRINSIC:MODEL_COMPONENTS] Nearest representable number

SYNTAX
result = nearest(x, s)

DESCRIPTION
nearest(x, s) returns the processor-representable number nearest to X in the direction indicated by the sign of S.

ARGUMENTS
X Shall be of type REAL.
S Shall be of type REAL and not equal to zero.

RETURN VALUE
The return value is of the same type as X. If S is positive, NEAREST returns the processor-representable number greater than X and nearest to it. If S is negative, NEAREST returns the processor-representable number smaller than X and nearest to it.

EXAMPLE
Sample program: 

   program demo_nearest
   implicit none
     real :: x, y
     x = nearest(42.0, 1.0)
     y = nearest(42.0, -1.0)
     write (*,"(3(g20.15))") x, y, x - y
   end program demo_nearest

STANDARD
[[Fortran 95]] and later

CLASS
[[Elemental procedure|Elemental function]]

nearest (3) March 11, 2021
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