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  1. #1
    Join Date
    Jun 2011

    Linking error in visual studio C++ 2010

    I am using MS visual studio 2010 for building a C project. My project uses flex and bison for parsing purpose. When I build the project there is no error in compiling but error in linking.
    Following is the error:

    proparse.obj:could not resolved the pro_lex referenced in the function pro_parse

    Now,pro_lex is the function defined in the lex file. Lets say pro.lex. I used flex to generate the pro.c .And this function is defined and called as follows:

    In prolex.c

    #ifndef YY_ABCD
    #define YY_ABCD 1

    extern int pro_lex (void);

    #define YY_ABCD int pro_lex (void)

    YY_ABCD{ /*This is the main function which does all the lexical function

    And the yacc file proparse.y generates two file using bison viz proparse.h and proparse.c . The functions pro_lex and pro_parse are defined in the proparse.c as follows.

    In proparse.c

    #define yyparse pro_parse
    #define yylex pro_lex

    int yylex(void); /*defined in lex file
    pro_parse(); /*parsing function is called.

    Could you please let me know what can be the reason for it? I would also like to know if I can set some rules to link certain object files in the IDE. I think it is getting this error
    becasue of the inability of linking. I would be glad if you could let me know if I can set some rules so that these two files can link.

    Many thanks in advance.
    Last edited by __bairagi; July 7th, 2011 at 06:20 PM.

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