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Full Discussion: Why is required to leave an empty line at the end of a C program?
Top Forums Programming Why is required to leave an empty line at the end of a C program? Post 302425635 by jlliagre on Friday 28th of May 2010 05:48:51 PM
Old 05-28-2010
Both the SunOS 4 compatible and the default Solaris sed implementations silently ignore a last unterminated line. The posix compliant sed version doesn't ignore the last line but complain about it:
Code:
$ printf "abc\ndef\nghi" > file
$ /usr/ucb/sed '' file
abc
def
$ /usr/bin/sed '' file
abc
def
$ /usr/gnu/bin/sed '' file
abc
def
ghi$ /usr/xpg4/bin/sed '' file
abc
def
sed: Missing newline at end of file file.
ghi

Not also that both the Unix and Gnu versions of wc will tell that file has only two lines, which might confuse tools trusting that information:
Code:
  
$ wc -l file
       2 file
$ /usr/gnu/bin/wc -l file
2 file

 

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LEARN ABOUT REDHAT

hf77

HF77(1) 							     LAM TOOLS								   HF77(1)

NAME

       hf77, mpif77 - Compile LAM FORTRAN programs.

SYNTAX

       hf77 [-showme] ...

       see f77(1) (or whatever your underlying FORTRAN compiler is) for all other options.

DESCRIPTION

       hf77  is  a convenience wrapper for the local native FORTRAN compiler.  Translation of a LAM program requires the linkage of the LAM essen-
       tial services libraries which may not reside in one of the standard search directories of ld(1).  hf77 passes its arguments  along  to  the
       local native FORTRAN compiler along with the -L and -l options required by LAM/MPI programs.  This includes all necessary options for ROMIO
       and/or C++ bindings support (if ROMIO/C++ support was included when LAM was compiled).

       mpif77 is now the same as hf77.	See the NOTES section, below.

       By default, hf77 uses the FORTRAN compiler that was selected when LAM was configured (with the --with-fc flag to ./configure) as the  local
       native FORTRAN compiler, but this can be overridden by the LAMHF77 environment variable.

OPTIONS

       -showme
	      Does  not  invoke the underlying FORTRAN compiler.  Instead, it shows the command line that would be executed to compile the FORTRAN
	      program.

NOTES

       Previous versions of hf77 did not automatically link in the MPI library.  Starting with LAM version 6.3, since hf77 has become the de facto
       LAM FORTRAN compiler, the -lmpi option is now automatically passed to the underlying compiler when linking LAM/MPI programs.

       Previous  versions  of  LAM included the mpif77 wrapper script to automatically pass -lmpi to hf77.  This script is now obsolete since hf77
       now includes -lmpi automatically.  mpif77 is now a symbolic link to hf77 to ensure backward compatibility.

SEE ALSO

       f77(1), ld(1), lam-helpfile(1)

LAM 6.5.8							  November, 2002							   HF77(1)
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