71 lines
1.9 KiB
Java
71 lines
1.9 KiB
Java
<h2>Comments</h2>
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<pre><code>! This is a comment</code></pre>
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<h2>Strings</h2>
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<pre><code>"foo 'bar' baz"
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'foo ''bar'' baz'
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''
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ITALICS_'This is in italics'
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"test &
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! Some "tricky comment" here
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&test"</code></pre>
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<h2>Numbers</h2>
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<pre><code>473
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+56
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-101
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21_2
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21_SHORT
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1976354279568241_8
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B'01110'
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B"010"
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O'047'
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O"642"
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Z'F41A'
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Z"00BC"
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-12.78
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+1.6E3
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2.1
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-16.E4_8
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0.45E-4
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10.93E7_QUAD
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.123
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3E4</code></pre>
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<h2>Full example</h2>
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<pre><code>MODULE MOD1
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TYPE INITIALIZED_TYPE
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INTEGER :: I = 1 ! Default initialization
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END TYPE INITIALIZED_TYPE
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SAVE :: SAVED1, SAVED2
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INTEGER :: SAVED1, UNSAVED1
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TYPE(INITIALIZED_TYPE) :: SAVED2, UNSAVED2
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ALLOCATABLE :: SAVED1(:), SAVED2(:), UNSAVED1(:), UNSAVED2(:)
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END MODULE MOD1
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PROGRAM MAIN
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CALL SUB1 ! The values returned by the ALLOCATED intrinsic calls
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! in the PRINT statement are:
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! .FALSE., .FALSE., .FALSE., and .FALSE.
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! Module MOD1 is used, and its variables are allocated.
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! After return from the subroutine, whether the variables
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! which were not specified with the SAVE attribute
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! retain their allocation status is processor dependent.
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CALL SUB1 ! The values returned by the first two ALLOCATED intrinsic
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! calls in the PRINT statement are:
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! .TRUE., .TRUE.
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! The values returned by the second two ALLOCATED
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! intrinsic calls in the PRINT statement are
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! processor dependent and each could be either
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! .TRUE. or .FALSE.
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CONTAINS
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SUBROUTINE SUB1
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USE MOD1 ! Brings in saved and not saved variables.
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PRINT *, ALLOCATED(SAVED1), ALLOCATED(SAVED2), &
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ALLOCATED(UNSAVED1), ALLOCATED(UNSAVED2)
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IF (.NOT. ALLOCATED(SAVED1)) ALLOCATE(SAVED1(10))
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IF (.NOT. ALLOCATED(SAVED2)) ALLOCATE(SAVED2(10))
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IF (.NOT. ALLOCATED(UNSAVED1)) ALLOCATE(UNSAVED1(10))
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IF (.NOT. ALLOCATED(UNSAVED2)) ALLOCATE(UNSAVED2(10))
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END SUBROUTINE SUB1
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END PROGRAM MAIN</code></pre> |