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Annotation of researchv10dc/man/manb/olint.1, revision 1.1

1.1     ! root        1: .TH LINT 1
        !             2: .UC 4
        !             3: .SH NAME
        !             4: lint \- a C program verifier
        !             5: .SH SYNOPSIS
        !             6: .B lint
        !             7: [
        !             8: .B \-abchnpuvx
        !             9: ]
        !            10: file ...
        !            11: .SH DESCRIPTION
        !            12: .I Lint
        !            13: attempts to detect features of the C program
        !            14: .I files
        !            15: which are
        !            16: likely to be bugs, or non-portable, or wasteful.
        !            17: It also checks the type usage of the program more strictly
        !            18: than the compilers.
        !            19: Among the things which are currently found are
        !            20: unreachable statements,
        !            21: loops not entered at the top,
        !            22: automatic variables declared and not used,
        !            23: and logical expressions whose value is constant.
        !            24: Moreover, the usage of functions is checked to find
        !            25: functions which return values in some places and not in others,
        !            26: functions called with varying numbers of arguments,
        !            27: and functions whose values are not used.
        !            28: .PP
        !            29: By default, it is assumed that all the
        !            30: .I files
        !            31: are to be loaded together; they are checked for
        !            32: mutual compatibility.
        !            33: Function definitions for certain libraries are available to
        !            34: .IR lint ;
        !            35: these libraries are referred to by a
        !            36: conventional name,
        !            37: such as `\-lm', in the style of
        !            38: .IR ld (1).
        !            39: .PP
        !            40: Any number of the options in the following list
        !            41: may be used.
        !            42: The
        !            43: .SM
        !            44: .BR \-D "\*S,"
        !            45: .SM
        !            46: .BR \-U "\*S,"
        !            47: and
        !            48: .SM
        !            49: .B \-I
        !            50: options of
        !            51: .IR cc (1)
        !            52: are also recognized as separate arguments.
        !            53: .TP
        !            54: .B p
        !            55: Attempt to check portability to the
        !            56: .I IBM
        !            57: and
        !            58: .I GCOS
        !            59: dialects of C.
        !            60: .TP
        !            61: .B h
        !            62: Apply a number of heuristic tests to attempt to
        !            63: intuit bugs, improve style, and reduce waste.
        !            64: .TP
        !            65: .B b
        !            66: Report
        !            67: .I break
        !            68: statements that cannot be reached.
        !            69: (This is not the default because, unfortunately,
        !            70: most
        !            71: .I lex
        !            72: and many
        !            73: .I yacc
        !            74: outputs produce dozens of such comments.)
        !            75: .TP
        !            76: .B v
        !            77: Suppress complaints about unused arguments in functions.
        !            78: .TP
        !            79: .B x
        !            80: Report variables referred to by extern declarations,
        !            81: but never used.
        !            82: .TP
        !            83: .B a
        !            84: Report assignments of long values to int variables.
        !            85: .TP
        !            86: .B c
        !            87: Complain about casts which have questionable portability.
        !            88: .TP
        !            89: .B u
        !            90: Do not complain about functions and variables used and not
        !            91: defined, or defined and not used (this is suitable for running
        !            92: .I lint
        !            93: on a subset of files out of a larger program).
        !            94: .TP
        !            95: .B n
        !            96: Do not check compatibility against the standard library.
        !            97: .PP
        !            98: .IR Exit (2)
        !            99: and other functions which do not return
        !           100: are not understood; this causes various lies.
        !           101: .PP
        !           102: Certain conventional comments in the C source
        !           103: will change the behavior of
        !           104: .IR lint :
        !           105: .TP
        !           106: /*NOTREACHED*/
        !           107: at appropriate points
        !           108: stops comments about unreachable code.
        !           109: .TP
        !           110: .RI /*VARARGS n */
        !           111: suppresses
        !           112: the usual checking for variable numbers of arguments
        !           113: in the following function declaration.
        !           114: The data types of the first
        !           115: .I n
        !           116: arguments are checked;
        !           117: a missing
        !           118: .I n
        !           119: is taken to be 0.
        !           120: .TP
        !           121: /*NOSTRICT*/
        !           122: shuts off strict type checking in the next expression.
        !           123: .TP
        !           124: /*ARGSUSED*/
        !           125: turns on the
        !           126: .B \-v
        !           127: option for the next function.
        !           128: .TP
        !           129: /*LINTLIBRARY*/
        !           130: at the beginning of a file shuts off complaints about
        !           131: unused functions in this file.
        !           132: .SH FILES
        !           133: .ta \w'/usr/lib/llib-port  'u
        !           134: /usr/lib/lint/lint[12] programs
        !           135: .br
        !           136: /usr/lib/lint/llib-lc declarations for standard functions
        !           137: .br
        !           138: /usr/lib/lint/llib-port declarations for portable functions
        !           139: .SH SEE ALSO
        !           140: cc(1)
        !           141: .br
        !           142: S. C. Johnson,
        !           143: .I Lint, a C Program Checker
        !           144: .SH BUGS
        !           145: There are some things you just
        !           146: .B can't
        !           147: get lint to shut up about.

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