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- MMMMAAAAPPPPLLLLUUUUNNNN((((3333FFFF)))) MMMMAAAAPPPPLLLLUUUUNNNN((((3333FFFF))))
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- NNNNAAAAMMMMEEEE
- maplun - returns the integer file descriptor for a Fortran logical unit
- number
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- SSSSYYYYNNNNOOOOPPPPSSSSIIIISSSS
- mmmmaaaapppplllluuuunnnn ((((lllluuuunnnn))))
- iiiinnnntttteeeeggggeeeerrrr****4444 lllluuuunnnn
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- DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
- This function returns the file descriptor given a Fortran logical unit
- number.
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- DDDDIIIIAAAAGGGGNNNNOOOOSSSSTTTTIIIICCCCSSSS
- Success is indicated by a non-negative return value. A negative return
- value indicates an error. The value of _e_r_r_n_o can be examined to
- determine the cause of the error.
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- NNNNOOOOTTTTEEEESSSS
- This function cannot be used on indexed files since each Fortran indexed
- file is represented by two physical files and this function cannot map a
- single Fortran logical unit to two file descriptors. Also, the indexed
- file internal format is proprietary and cannot be modified by the user
- directly so this function, or a similar function, will not help in that
- respect.
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- PPPPaaaaggggeeee 1111
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