+.pa 1
+.he 'FC (I)'9/1/72'FC (I)'
+.ti 0
+NAME fc -- fortran compiler
+.sp
+.ti 0
+SYNOPSIS fc\b\b__ [ -c\b\b__ ] sfile\d1\u.f\b\b__ ... ofile\d1\u ...
+.sp
+.ti 0
+DESCRIPTION fc\b\b__
+is the UNIX Fortran compiler.
+It accepts three types of arguments:
+
+Arguments whose names end with ".f" are assumed to be
+Fortran source program units; they are compiled, and
+the object program is left on the file sfile\d1\u.o (i.e.
+the file whose name is that of the source with ".o" substituted
+for ".f").
+
+Other arguments (except for "-c") are assumed
+to be either loader flags, or
+object programs, typically produced by an earlier fc\b\b__ run,
+or perhaps libraries of Fortran-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\b\b\b\b\b_____.
+
+The "-c" argument suppresses the loading phase, as does
+any syntax error in any of the routines being compiled.
+
+The following is a list
+of differences between fc\b\b__
+and ANSI standard Fortran (also see the BUGS section):
+.sp
+.in +3
+.ti -3
+1. Arbitrary combination of types is allowed
+in expressions. Not all combinations are expected to
+be supported at runtime.
+All of the normal
+conversions involving integer, real, double
+precision and complex are allowed.
+.sp
+.ti -3
+2. The 'standard' implicit statement is recognized.
+.sp
+.ti -3
+3. The types
+doublecomplex, logical*1,
+integer*2 and real*8 (doubleprecision)
+are supported.
+.sp
+.ti -3
+4. &\b_ as the first character of a line
+signals a continuation card.
+.sp
+.ti -3
+5. c\b_ as the first character of a line signals a comment.
+.sp
+.ti -3
+6. All keywords are recognized in lower case.
+.sp
+.ti -3
+7. The notion of 'column 7' is not implemented.
+
+.ti -3
+8. G-format input is free form--
+leading blanks are ignored, the first blank after the start
+of the number terminates the field.
+
+.ti -3
+9. A comma in any numeric or logical input field terminates
+the field.
+
+.ti -4
+10. There is no carriage control on output.
+.sp
+.in -3
+In I/O statements, only unit numbers 0-19 are supported.
+Unit number nn\b\b__ corresponds to file "fortnn\b\b__;"
+(e.g. unit 9 is file "fort09").
+For input, the file must exist;
+for output, it will be created.
+
+Unit 5 is permanently associated with
+the standard input file; unit 6 with the
+standard output file.
+.sp
+.ti 0
+FILES file.f input file
+.nf
+a.out loaded output
+f.tmp[123] temporary (deleted)
+/usr/fort/fc[1234] compilation phases
+/usr/lib/fr0.o runtime startoff
+/usr/lib/filib.a interpreter library
+/usr/lib/libf.a builtin functions, etc.
+/usr/lib/liba.a system library
+.fi
+.sp
+.ti 0
+SEE ALSO ANSI standard
+.sp
+.ti 0
+DIAGNOSTICS Compile-time diagnostics
+are given by number.
+If the source code is available, it is
+printed with an underline at the current
+character pointer.
+Errors possible are:
+
+.in +8
+.ti -8
+1 statement too long
+.ti -8
+2 syntax error in type statement
+.ti -8
+3 redeclaration
+.ti -8
+4 missing ( in array declarator
+.ti -8
+5 syntax error in dimension statement
+.ti -8
+6 inappropriate or gratuitous array declarator
+.ti -8
+7 syntax error in subscript bound
+.ti -8
+8 illegal character
+.ti -8
+9 common variable is a parameter or already in common
+.ti -8
+10 common syntax error
+.ti -8
+11 subroutine/blockdata/function not first statement
+.ti -8
+12 subroutine/function syntax error
+.ti -8
+13 block data syntax error
+.ti -8
+14 redeclaration in external
+.ti -8
+15 external syntax error
+.ti -8
+16 implicit syntax error
+.ti -8
+17 subscript on non-array
+.ti -8
+18 incorrect subscript count
+.ti -8
+19 subscript out of range
+.ti -8
+20 subscript syntax error
+.ti -8
+22 DATA syntax error
+.ti -8
+23 Illegal variable in DATA
+.ti -8
+23 equivalence inconsistency
+.ti -8
+24 equivalence syntax error
+.ti -8
+25 separate common blocks equivalenced
+.ti -8
+26 common block illegally extended by equivalence
+.ti -8
+27 common inconsistency created by equivalence
+.ti -8
+28 DATA table overflow
+.ti -8
+29 () imbalance in expression
+.ti -8
+30 expression syntax error
+.ti -8
+31 illegal variable in equivalence
+.ti -8
+32 Storage initialized twice by DATA
+.ti -8
+33 non array/function used with subscripts/arguments
+.ti -8
+35 goto syntax error
+.ti -8
+37 illegal return
+.ti -8
+38 continue, return, stop, call, end, or pause syntax error
+.ti -8
+39 assign syntax error
+.ti -8
+40 if syntax error
+.ti -8
+41 I/O syntax error
+.ti -8
+42 do or I/O iteration error
+.ti -8
+43 do end missing
+.ti -8
+50 illegal statement in block data
+.ti -8
+51 multiply defined labels
+.ti -8
+52 undefined label
+.ti -8
+53 dimension mismatch
+.ti -8
+54 expression syntax error
+.ti -8
+55 end of statement in hollerith constant
+.ti -8
+56 array too large
+.ti -8
+99 \ eB\ f table overflow
+.ti -8
+101 unrecognized statement
+.ti -8
+
+.ti -8
+Runtime diagnostics:
+.ti -8
+
+.ti -8
+1 invalid log argument
+.ti -8
+2 bad arg count to amod
+.ti -8
+3 bad arg count to atan2
+.ti -8
+4 excessive argument to cabs
+.ti -8
+5 exp too large in cexp
+.ti -8
+6 bad arg count to cmplx
+.ti -8
+7 bad arg count to dim
+.ti -8
+8 excessive argument to exp
+.ti -8
+9 bad arg count to idim
+.ti -8
+10 bad arg count to isign
+.ti -8
+11 bad arg count to mod
+.ti -8
+12 bad arg count to sign
+.ti -8
+13 illegal argument to sqrt
+.ti -8
+14 assigned/computed goto out of range
+.ti -8
+15 subscript out of range
+.ti -8
+16 real**real overflow
+
+.ti -8
+100 illegal I/O unit number
+.ti -8
+101 inconsistent use of I/O unit
+.ti -8
+102 cannot create output file
+.ti -8
+103 cannot open input file
+.ti -8
+104 EOF on input file
+.ti -8
+105 illegal character in format
+.ti -8
+106 format does not begin with (
+.ti -8
+107 no conversion in format but non-empty list
+.ti -8
+108 excessive parenthesis depth in format
+.ti -8
+109 illegal format specification
+.ti -8
+110 illegal character in input field
+.ti -8
+111 end of format in hollerith specification
+.ti -8
+999 unimplemented input conversion
+.sp
+.in -8
+.ti 0
+BUGS The following is a list of
+those features not yet implemented:
+.sp
+.br
+arithmetic statement functions
+
+backspace, endfile, rewind runtime
+
+binary I/O
+
+no scale factors on input
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