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Language extensions

Language extensions

The list of extensions below is only available the /ISO compiler option has not been specified. This is a subset of the FTN77 Fortran extensions as some FTN77 extensions are now part of the Fortran 95 standard (e.g. B, O and Z format descriptors) or are due to be incorporated into a future Fortran standard (e.g. conditional compilation).

Hollerith data anywhere in source (not just in FORMAT strings)

Use of @ and $ characters in names and common block names

Octal, hexadecimal and binary constants outside of DATA statements

FTN77 compatible WHILE statement

Internal procedures

Conditional compilation

Business editing

In-line 32-bit assembler

Miscellaneous Input/Output Extensions

 

 

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