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efl(1) [bsd man page]

EFL(1)							      General Commands Manual							    EFL(1)

NAME
efl - Extended Fortran Language SYNOPSIS
efl [ option ... ] [ filename ... ] DESCRIPTION
Efl compiles a program written in the EFL language into clean Fortran. Efl provides the same control flow constructs as does ratfor(1), which are essentially identical to those in C: statement grouping with braces; decision-making with if, if-else, and switch-case; while, for, Fortran do, repeat, and repeat...until loops; multi-level break and next. In addition, EFL has C-like data structures, and more uniform and convenient input/output syntax, generic functions. EFL also provides some syntactic sugar to make programs easier to read and write: free form input: multiple statements/line; automatic continuation statement label names (not just numbers), comments: # this is a comment translation of relationals: >, >=, etc., become .GT., .GE., etc. return (expression) returns expression to caller from function define: define name replacement include: include filename The Efl command option -w suppresses warning messages. The option -C causes comments to be copied through to the Fortran output (default); -# prevents comments from being copied through. If a command argument contains an embedded equal sign, that argument is treated as if it had appeared in an option statement at the beginning of the program. Efl is best used with f77(1). SEE ALSO
f77(1), ratfor(1). S. I. Feldman, The Programming Language EFL, Bell Labs Computing Science Technical Report #78. 7th Edition April 29, 1985 EFL(1)

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F77(1)							      General Commands Manual							    F77(1)

NAME
f77 - Fortran 77 compiler SYNOPSIS
f77 [ option ] ... file ... DESCRIPTION
F77 is the UNIX Fortran 77 compiler. It accepts several types of arguments: Arguments whose names end with `.f' are taken to be Fortran 77 source programs; they are compiled, and each object program is left on the file in the current directory whose name is that of the source with `.o' substituted for '.f'. Arguments whose names end with `.r' or `.e' are taken to be Ratfor or EFL source programs, respectively; these are first transformed by the appropriate preprocessor, then compiled by f77. In the same way, arguments whose names end with `.c' or `.s' are taken to be C or assembly source programs and are compiled or assembled, producing a `.o' file. The following options have the same meaning as in cc(1). See ld(1) for load-time options. -c Suppress loading and produce `.o' files for each source file. -p Prepare object files for profiling, see prof(1). -O Invoke an object-code optimizer. -S Compile the named programs, and leave the assembler-language output on corresponding files suffixed `.s'. (No `.o' is created.). -f Use a floating point interpreter (for PDP11's that lack 11/70-style floating point). -o output Name the final output file output instead of `a.out'. The following options are peculiar to f77. -onetrip Compile DO loops that are performed at least once if reached. (Fortran 77 DO loops are not performed at all if the upper limit is smaller than the lower limit.) -u Make the default type of a variable `undefined' rather than using the default Fortran rules. -C Compile code to check that subscripts are within declared array bounds. -w Suppress all warning messages. If the option is `-w66', only Fortran 66 compatibility warnings are suppressed. -F Apply EFL and Ratfor preprocessor to relevant files, put the result in the file with the suffix changed to `.f', but do not compile. -m Apply the M4 preprocessor to each `.r' or `.e' file before transforming it with the Ratfor or EFL preprocessor. -Ex Use the string x as an EFL option in processing `.e' files. -Rx Use the string x as a Ratfor option in processing `.r' files. Other arguments are taken to be either loader option arguments, or F77-compatible object programs, typically produced by an earlier run, or perhaps libraries of F77-compatible routines. These programs, together with the results of any compilations specified, are loaded (in the order given) to produce an executable program with name `a.out'. FILES
file.[fresc] input file file.o object file a.out loaded output /usr/lib/f77pass1 compiler /lib/c1 pass 2 /lib/c2 optional optimizer /usr/lib/libF77.a intrinsic function library /usr/lib/libI77.a Fortran I/O library /lib/libc.a C library, see section 3 SEE ALSO
S. I. Feldman, P. J. Weinberger, A Portable Fortran 77 Compiler prof(1), cc(1), ld(1) DIAGNOSTICS
The diagnostics produced by f77 itself are intended to be self-explanatory. Occasional messages may be produced by the loader. BUGS
The Fortran 66 subset of the language has been exercised extensively; the newer features have not. F77(1)
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