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Annotation of coherent/a/usr/man/ALL/_23line, revision 1.1

1.1     ! root        1: 
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        !             3: #line                Preprocessing Directive                #line
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        !             8: Reset line number
        !             9: 
        !            10: #lliinnee _n_u_m_b_e_r _n_e_w_l_i_n_e
        !            11: #lliinnee _n_u_m_b_e_r _f_i_l_e_n_a_m_e _n_e_w_l_i_n_e
        !            12: #lliinnee _m_a_c_r_o_s _n_e_w_l_i_n_e
        !            13: 
        !            14: #line is  a preprocessing directive  that resets the  line number
        !            15: within  a file.   The ANSI  Standard defines  the line  number as
        !            16: being the number of newline characters read, plus one.
        !            17: 
        !            18: #line  can take  any of  three forms.   The first,  #lliinnee _n_u_m_b_e_r,
        !            19: resets the current line number in the source file to number.  The
        !            20: second, #lliinnee  _n_u_m_b_e_r _f_i_l_e_n_a_m_e, resets the  line number to number
        !            21: and changes  the name of the file to  filename.  The third, #lliinnee
        !            22: _m_a_c_r_o_s,  contains  macros  that  have  been  defined  by  earlier
        !            23: preprocessing directives.  When  the macros have been expanded by
        !            24: the preprocessor, the #lliinnee instruction will then resemble one of
        !            25: the first two forms and be interpreted appropriately.
        !            26: 
        !            27: ***** See Also *****
        !            28: 
        !            29: C preprocessor
        !            30: 
        !            31: ***** Notes *****
        !            32: 
        !            33: Most often, #line is used  to ensure that error messages point to
        !            34: the correct line in  the program's source code.  A program gener-
        !            35: ator may  use this directive  to associate errors  in generated C
        !            36: code with the  original sources.  For example, the program gener-
        !            37: ator yyaacccc uses #lliinnee instructions to link the C code it generates
        !            38: with the yyaacccc code written by the programmer.
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        !            64: COHERENT Lexicon                                           Page 1
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