Command-Line Argument Intrinsics - Oracle® Solaris Studio 12.4: Fortran User's Guide

Oracle® Solaris Studio 12.4: Fortran User's Guide

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Updated: March 2015

Oracle^® Solaris Studio 12.4: Fortran User's Guide

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Using This Documentation

Chapter 1 Introduction

Chapter 2 Using Solaris Studio Fortran

Chapter 3 Fortran Compiler Options

Chapter 4 Solaris Studio Fortran Features and Extensions

4.1 Source Language Features

4.1.1 Continuation Line Limits

4.1.2 Fixed-Form Source Lines

4.1.4 Source Form Assumed

4.1.5 Limits and Defaults

4.2.1 Boolean Type

4.2.2 Abbreviated Size Notation for Numeric Data Types

4.2.3 Size and Alignment of Data Types

4.3 Cray Pointers

4.3.2 Purpose of Cray Pointers

4.3.3 Declaring Cray Pointers and Fortran 95 Pointers

4.3.4 Features of Cray Pointers

4.3.5 Restrictions on Cray Pointers

4.3.6 Restrictions on Cray Pointees

4.3.7 Usage of Cray Pointers

4.4 STRUCTURE and UNION (VAX Fortran)

4.5 Unsigned Integers

4.5.1 Arithmetic Expressions

4.5.2 Relational Expressions

4.5.3 Control Constructs

4.5.4 Input/Output Constructs

4.5.5 Intrinsic Functions

4.6 Fortran 200x Features

4.6.1 Interoperability with C

4.6.2 IEEE Floating-Point Exception Handling

4.6.3 Command-Line Argument Intrinsics

4.6.4 PROTECTED Attribute

4.6.5 Fortran 2003 Asynchronous I/O

4.6.6 Extended ALLOCATABLE Attribute

4.6.7 VALUE Attribute

4.6.8 Fortran 2003 Stream I/O

4.6.9 Fortran 2003 IMPORT Statement

4.6.10 Fortran 2003 FLUSH I/O Statement

4.6.11 Fortran 2003 POINTER INTENT Feature

4.6.12 Fortran 2003 Enhanced Array Constructor

4.6.13 Object-Oriented Fortran Support

4.6.14 FINAL Subroutine Support

4.6.15 Procedure Pointer Support

4.6.16 Additional Fortran 2003 and Fortran 2008 Features

4.7 Additional I/O Extensions

4.7.1 I/O Error Handling Routines

4.7.2 Variable Format Expressions

4.7.3 NAMELIST Input Format

4.7.4 Binary Unformatted I/O

4.7.5 Miscellaneous I/O Extensions

4.8.1 Form of Special f95 Directive Lines

4.8.2 FIXED and FREE Directives

4.8.3 Parallelization Directives

4.9 Module Files

4.9.1 Searching for Modules

4.9.2 The -use=list Option Flag

4.9.3 The fdumpmod Command

4.10 Intrinsics

4.11 Forward Compatibility

4.12 Mixing Languages

Chapter 5 FORTRAN 77 Compatibility: Migrating to Solaris Studio Fortran

Appendix A Runtime Error Messages

Appendix B Features Release History

Appendix C Fortran Directives Summary

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4.6.3 Command-Line Argument Intrinsics

The Fortran 2003 standard introduces three new intrinsics for processing command-line arguments and environment variables. These are:

GET_COMMAND(command, length, status)

Returns in command the entire command line that invoked the program.
GET_COMMAND_ARGUMENT(number, value, length, status)

Returns a command-line argument in value.
GET_ENVIRONMENT_VARIABLE(name, value, length, status, trim_name)

Return the value of an environment variable.

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