std::cout and gfortran print*, don't output to the screen Post: 302508859

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Top Forums Programming std::cout and gfortran print*, don't output to the screen Post 302508859 by drl on Tuesday 29th of March 2011 09:48:24 AM

03-29-2011

Registered User

Hi.

It seems to work for me:

Code:

#!/usr/bin/env bash

# @(#) s1	Demonstrate compile, execute with gfortran, g++.

# Utility functions: print-as-echo, print-line-with-visual-space, debug.
pe() { for i;do printf "%s" "$i";done; printf "\n"; }
pl() { pe;pe "-----" ;pe "$*"; }
db() { ( printf " db, ";for i;do printf "%s" "$i";done; printf "\n" ) >&2 ; }
db() { : ; }
C=$HOME/bin/context && [ -f $C ] && . $C g++ gfortran

pl " File hi.f:"
cat hi.f

pl " Results, hi.f:"
rm -f a.out
gfortran hi.f
./a.out

pl " File hi.cpp:"
cat hi.cpp

pl " Results, hi.cpp:"
rm -f a.out
g++ hi.cpp
./a.out

rm -f a.out

exit 0

producing:

Code:

$ ./s1

Environment: LC_ALL = C, LANG = en_US.UTF-8
(Versions displayed with local utility "version")
OS, ker|rel, machine: Linux, 2.6.18-194.32.1.el5, i686
Distribution        : CentOS release 5.5 (Final) 
GNU bash 3.2.25
g++ (GCC) 4.1.2 20080704 (Red Hat 4.1.2-48)
gfortran GNU Fortran (GCC) 4.1.2 20080704 (Red Hat 4.1.2-48)

-----
 File hi.f:
	program hi
	write(*,*) " Hello, world with write * *"
	print*, " Hello, world with print *"
	end

-----
 Results, hi.f:
  Hello, world with write * *
  Hello, world with print *

-----
 File hi.cpp:
#include <iostream>

using namespace std;

int main()
{
  cout << " Hello, world from c++ with cout" << endl;
  return ( 0 );
}

-----
 Results, hi.cpp:
 Hello, world from c++ with cout

Standard advice:

Quote:

Advice to posters who do not post source:

If you want your program to be analyzed you should post your
program instead of trying only to describe it. Please post the
smallest code that exhibits the symptoms you have. Place the
post in CODE tags for easy reading.

Best wishes ... cheers, drl

drl

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binfmtf95-interpreter

binfmtf(1)							     binfmt_C								binfmtf(1)

NAME

       binfmtf-interpreter - binfmt_misc fortran handler

SYNOPSIS

       binfmtf-interpreter fortran-source-file-name [command-line opions ...]

DESCRIPTION

       binfmtf95-interpreter  compiles a fortran source file specified on the command-line using the gfortran compiler, and executes the resulting
       file.

       It is designed to be used as a handler for binfmt_misc handler, which is a system used in Linux for handling arbitrary  files  as  executa-
       bles.

       The command-line options are passed on to the compiled binary.

FILE MAGIC

       There is a requirement for Fortran source files to have the magic characters ! BINFMTF95: at the beginning of the file.

       That line also is used to specify the additional command-line options for Fortran compiler.

ENVIRONMENT

       GFORTRAN
	      The compiler used.  The default is to use gfortran

       BINFMTCTMPDIR

	      Temporary directory used for binary and execution.

	      Falls back to $TMPDIR $TEMPDIR or /tmp

       BINFMTC_DEBUG
	      enables debug output if set.

       BINFMTC_GFORTRAN_OPTS
	      Additional Gfortran options.  Use BINFMTC_DEBUG to verify the options being passed on to gfortran.

	      The default is  -O2 -Wall

AUTHOR

       Junichi Uekawa (dancer@debian.org)

       Upstream page is available at http://www.netfort.gr.jp/~dancer/software/

SEE ALSO

       binfmtasm-interpreter(1), binfmtc-interpreter(1), binfmtcxx-interpreter(1), binfmtf-interpreter(1), binfmtgcj-interpreter(1)

binfmt_misc Dancer						    2005 Jun 4								binfmtf(1)