Intel® Fortran Compiler Classic and Intel® Fortran Compiler Developer Guide and Reference

ID 767251
Date 7/13/2023
Public

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Document Table of Contents

fixed

Specifies source files are in fixed format.

Syntax

Linux:

-fixed

-nofixed

macOS:

-fixed

-nofixed

Windows:

/fixed

/nofixed

Arguments

None

Default

OFF

The source file format is determined from the file extension.

Description

This option specifies source files are in fixed format. If this option is not specified, format is determined as follows:

  • Files with an extension of .f90, .F90, or .i90 are free-format source files.

  • Files with an extension of .f, .for, .FOR, .ftn, .FTN, .fpp, .FPP, or .i are fixed-format files.

Note that on Linux* and macOS systems, file names and file extensions are case sensitive.

IDE Equivalent

Visual Studio: Language > Source File Format (/free, /fixed)

Alternate Options

Linux and macOS: -FI

Windows: /nofree, /FI, /4Nf