how to compile C++ file on linux OS

This is a discussion on how to compile C++ file on linux OS within the C++ Programming forums, part of the General Programming Boards category; Hi All , I am very much new for this forum as well as Linux operating system. I am facing ...

  1. #1
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    how to compile C++ file on linux OS

    Hi All ,

    I am very much new for this forum as well as Linux operating system.
    I am facing a silly problem . I am making a small C++ project on rad hat Linux.

    I create a " Application" directory in witch i make a application.h which contain some .h files and a class declaration . Appliction.cpp file contains application.h file and class defination and main function . As i compile the application.cpp by using g++ -o a.out application.cpp then it gives the bundle of errors.


    While if i just create a cpp file and compile it ,it works fine.

    My question is , is there any different way to create .h file in Linux

    all suggestion are appriciated.

    Thanks in advance

    ND

  2. #2
    and the hat of wrongness Salem's Avatar
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    Here's a clue - tell us the error messages
    If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
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  3. #3
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    i am using diskIO.cpp
    after compilation it gives these massages




    [root@localhost diskIO]# g++ diskIO.cpp -o t.out


    In file included from /usr/include/c++/3.2.2/backward/iostream.h:31,
    from /usr/include/c++/3.2.2/backward/disk.h:5,
    from diskIO.cpp:1:
    /usr/include/c++/3.2.2/backward/backward_warning.h:32:2: warning: #warning This file includes at least one deprecated or antiquated header. Please consider using one of the 32 headers found in section 17.4.1.2 of the C++ standard. Examples include substituting the <X> header for the <X.h> header for C++ includes, or <sstream> instead of the deprecated header <strstream.h>. To disable this warning use -Wno-deprecated.
    diskIO.cpp:3: syntax error before `::' token
    diskIO.cpp:7: ISO C++ forbids declaration of `memset' with no type
    diskIO.cpp:7: `int memset' redeclared as different kind of symbol
    /usr/include/string.h:58: previous declaration of `void* memset(void*, int,
    unsigned int)'
    diskIO.cpp:7: initializer list being treated as compound expression
    diskIO.cpp:9: parse error before `for'
    diskIO.cpp:9: parse error before `;' token
    diskIO.cpp:9: syntax error before `++' token
    diskIO.cpp:12: `hdd_no' was not declared in this scope
    diskIO.cpp:12: ISO C++ forbids declaration of `sprintf' with no type
    diskIO.cpp:12: `int sprintf' redeclared as different kind of symbol
    /usr/include/stdio.h:303: previous declaration of `int sprintf(char*, const
    char*, ...)'
    diskIO.cpp:12: initializer list being treated as compound expression
    diskIO.cpp:13: ISO C++ forbids declaration of `fin' with no type
    diskIO.cpp:13: invalid conversion from `FILE*' to `int'
    diskIO.cpp:14: parse error before `if'
    diskIO.cpp:17: ISO C++ forbids declaration of `tt' with no type
    diskIO.cpp:18: parse error before `}' token
    diskIO.cpp: In function `int main()':
    diskIO.cpp:32: `linux_diskIO' undeclared (first use this function)
    diskIO.cpp:32: (Each undeclared identifier is reported only once for each
    function it appears in.)
    diskIO.cpp:32: parse error before `;' token
    diskIO.cpp:33: `di' undeclared (first use this function)

  4. #4
    C++ Witch laserlight's Avatar
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    You're probably using
    #include <iostream.h>
    where g++ expects the more modern standard
    #include <iostream>

    Along with that, you might not be using namespaces (correctly), also a more modern feature of C++.
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  5. #5
    and the hat of wrongness Salem's Avatar
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    Your code looks to be a horrible mix of C and C++ from some of those messages

    I can't tell much more without seeing some code.
    If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
    If at first you don't succeed, try writing your phone number on the exam paper.
    I support http://www.ukip.org/ as the first necessary step to a free Europe.

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