NOT - The GNU Fortran Compiler
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### 8.185 `NOT` — Logical negation

Description:
  `NOT` returns the bitwise Boolean inverse of I.
Standard:
  Fortran 95 and later
Class:
  Elemental function
Syntax:
  `RESULT = NOT(I)`
Arguments:

  I | The type shall be `INTEGER`.

Return value:
  The return type is `INTEGER`, of the same kind as the argument.
See also:
  IAND, IEOR, IOR, IBITS, IBSET, IBCLR