Mode iso

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Starting with version 3.0.2, the mode ISO 7185 (switched on with {$mode iso} in source code or -Miso on the command line) of FPC complies with the requirements of level 0 and level 1 of ISO/IEC 7185. ISO 7185 is also known as Standard Pascal.

Using mode iso has the following special features:

  • External files are declared as parameters in the program statement.
  • Files have associated "buffer variables", and "get" and "put" procedures operate on them. This functionality is not present in other modes.
  • mod operation is as required by ISO Pascal.
  • Unary minus is as required by ISO Pascal.