ISHFTC - The GNU Fortran Compiler
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### 8.136 `ISHFTC` — Shift bits circularly

Description:
  `ISHFTC` returns a value corresponding to I with the rightmost SIZE bits shifted circularly SHIFT places; that is, bits shifted out one end are shifted into the opposite end. A value of SHIFT greater than zero corresponds to a left shift, a value of zero corresponds to no shift, and a value less than zero corresponds to a right shift. The absolute value of SHIFT must be less than SIZE. If the SIZE argument is omitted, it is taken to be equivalent to `BIT_SIZE(I)`.
Standard:
  Fortran 95 and later
Class:
  Elemental function
Syntax:
  `RESULT = ISHFTC(I, SHIFT [, SIZE])`
Arguments:

  I | The type shall be `INTEGER`.
  SHIFT | The type shall be `INTEGER`.
  SIZE | (Optional) The type shall be `INTEGER`; the value must be greater than zero and less than or equal to `BIT_SIZE(I)`.

Return value:
  The return value is of type `INTEGER` and of the same kind as I.
See also:
  ISHFT