equivalence fortran 77 language reference

C-Fortran Interface - Dartmouth College

A Fortran function that returns a value of type BYTE (FORTRAN 77 only), INTEGER, REAL, LOGICAL, DOUBLE PRECISION, or REAL*16 (SPARC only) is equivalent to a C function that returns a compatible type (see TABLE 11-1 and TABLE 11-2). There are two extra arguments for the return values of character functions, and one extra argument for the return values of complex functions.

Compaq Visual Fortran Language Reference

Language Reference Conventions Page 2 of 4 other keywords Bold lowercase letters are used for keywords of other languages. In the sentence, "A Fortran 95/90 subroutine is the equivalent of a function of type void in C," the word void is a keyword of C. eion Words in italics indicate placeholders for information that you must supply. Concurrent Fortran 77 Reference ManualFortran language. Information in this manual applies to PowerPCTM platforms as well as RedHawkTM Intel®. Structure of Manual A brief description of the chapters and appendixes in this manual follows: Chapter 1 provides a general introduction and overview of the Fortran 77 compiler. Language extensions, enhancements, syntax notation, and

EQUIVALENCE in Fortran Tutorial 28 April 2021 - Learn

Mar 27, 2009 · The EQUIVALENCE statement allows two or more entities in a program unit to share storage units, thus associating those entities.This statement allows the same information to be referenced by different names in the same program unit. Syntax EQUIVALENCE (nlist) [,(nlist)] where nlist is a list of variable names, array element names, array names, and character substring names. FORTRAN 77 Language Reference - AtariWikiThe FORTRAN 77 Language Reference specifies the FORTRAN 77 programming language and extensions accepted by the Sun WorkShop 6 f77compiler. This is a reference manual intended for programmers with a working knowledge of the Fortran language and the Solaris operating environment. Multiplatform Release This Sun WorkShop Fortran release supports versions 2.6, 7,

Fortran 77 Language Reference:1 - Elements of FORTRAN

Extensions Extensions to the standard FORTRAN 77 language include recursion, pointers, double-precision complex, quadruple-precision real, quadruple-precision complex, and many VAX® and VMS® FORTRAN 5.0 extensions, including NAMELIST, DO WHILE, structures, records, unions, maps, and variable formats.Multiprocessor FORTRAN includes automatic and explicit loop parallelization. Fortran 77 Language Reference:2 - Data Types and Data Items

• Rules For Data TypingFunctionsProperties of Data TypesCharacter ConstantsComplex*16 ConstantsComplex*32 (Quad Complex) ConstantsInteger ConstantsLogical ConstantsArray Names with No SubscriptsArray SubscriptsPreface - Dartmouth CollegeThe FORTRAN 77 Language Reference specifies the FORTRAN 77 programming language and extensions accepted by the Sun WorkShop TM 6 f77 compiler. This is a reference manual intended for programmers with a working knowledge of the Fortran language

  Fortran 90 reference - ICL

  Fortran 90/95 reference. As I started using Fortran, I found a number of references online, but none were completely satisfactory to me. The best ones Ive found are. Introduction to Fortran 90 at Queens University of Belfast Fortran 90 for the Fortran 77 Programmer. The textbook Fortran 90 Programming, by Ellis, Philips, Lahey was also Intel Fortran Language Referencevi Intel Fortran Language Reference FORALL Statement and Construct.. 4-26 Chapter 5 Specification Statements

  Intel® Fortran Compiler Classic 2021.1 and Intel® Fortran

  Intel® Fortran Compiler Classic and Intel® Fortran Compiler (Beta) Developer Guide and Reference Developer Guide and Reference Version:2021.2 Lahey/Fujitsu Fortran 95 Language ReferenceLahey/Fujitsu Fortran 95 Language Reference vii Introduction Lahey/Fujitsu Fortran 95 (LF95) is a complete implementation of the Fortran 95 standard. Numerous popular extensions are supported. This manual is intended as a reference to the Fortran 95 language for programmers with expe-rience in Fortran.

  Open Watcom FORTRAN 77 Language Reference

  Open Watcom FORTRAN 77 is an implementation of the American National Standard programming language FORTRAN, ANSI X3.9-1978, commonly referred to as FORTRAN 77. The language level supported by Open Watcom FORTRAN 77 compilers includes the full language definition as well as significant extensions to the language. Top (The GNU Fortran Compiler)Part II:Language Reference Fortran standards status:Fortran 2003, 2008 and 2018 features supported by GNU Fortran. Compiler Characteristics:User-visible implementation details. Extensions:Language extensions implemented by GNU Fortran. Mixed-Language Programming:Interoperability with C Coarray Programming:

  Transfer from Fortran 77 code(combination of common

  Jun 07, 2013 · In the Fortran 77 code , there is a combination use of common block and equivalence statement. For example, common /X/ a,b,c,d dimension arr(4) equivalent(arr(1),a) Can anybody provide a feasible solution that convert this kind of Fortran 77 code into Fortran 90 code? Using GNU FortranUsing GNU Fortran For gcc version 12.0.0 (pre-release) (GCC) The gfortran team

  XL Fortran:Language Reference

  IBM XL Fortran for Linux, V14.1 Language Reference Version 141. SC14-7347-00 [DOC]1. - projects.osd.noaa.gov · Web viewThe document is based on the recognition that many Fortran programmers and potential reviewers are accustomed to the Fortran 77 version, and much of the legacy Fortran code is in the Fortran 77 style. While it is recommended that Fortran programming be in accordance with Fortran 90 or later standards when practical, it is not required.

  fortran 77 tutorial - University of Texas at Austin

  fortran 77 tutorial (nearly identical versions available at several sites online) 1. Preface The goal of this Fortran tutorial is to give a quick introduction to the most common features of the Fortran 77 programming language. It is not a complete reference! Many details have been omitted. The presentation focuses on scientific computations, mainlyFORTRAN 77 Language Reference - OracleAppendix D VMS Language Extensions. Background; VMS Language Features in Sun Fortran; VMS Features Requiring -xl or -vax=spec. Summary of Features That Require -xl[d] Details of Features That Require -xl[d] Unsupported VMS FORTRAN