155. Use INQUIRE to get unit and file properties.

topic: Input and Output

Note

This tip is a draft1.

The INQUIRE statement can tell if a unit has been opened, if a file exists, a file’s size, whether it is open for reading or writing, formatted or not, its form of access, and other properties. Common uses of INQUIRE can be wrapped as functions as shown.

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The INQUIRE statement can tell if a unit has been opened, if a file exists, a file's size, whether it is open for reading or writing, formatted or not, its form of access, and other properties. Common uses of INQUIRE can be wrapped as functions as shown.pic.twitter.com/4ksASPJnLS

— FortranTip (@fortrantip) March 16, 2022

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1

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