From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Wei  Xu" <weixuz@yesic.com>
To: "Jonathan Pryor" <jonpryor@vt.edu>, <cygwin@sourceware.cygnus.com>
Subject: Re: gcc library
Date: Wed, 07 Jul 1999 07:55:00 -0000
Message-id: <008f01bec888$9535efc0$c3dba1d1@Xu.toronto.vr1.com>
X-SW-Source: 1999-07/msg00129.html

Thanks for your reply.

Your example works with g++. When I use gcc, still the same mistake:
undefined reference.


-----Original Message-----
From: Jonathan Pryor <jonpryor@vt.edu>
To: Wei Xu <weixuz@yesic.com>; cygwin@sourceware.cygnus.com
<cygwin@sourceware.cygnus.com>
Date: Wednesday, July 07, 1999 10:40 AM
Subject: Re: gcc library


><iostream.h> doesn't provide the prototype for printf.
>You need to include <stdio.h>.
>
>Also, the use of <iostream.h> has been deprecated by
>the C++ standard.  You should use <iostream>, which
>places everything in the std namespace.  Additionally,
><stdio.h> has been deprecated in favor of <cstdio>,
>which also places the contents into the std namespace;
>however, not all compilers support <cstdio>, so I tend
>to stick with <stdio.h>...
>
>    // example....
>    #include <iostream>
>    #include <stdio.h>
>
>    using namespace std;
>
>    int main ()
>    {
>      cout << "Hello, world!\n";
>      printf ("Hello again, world!\n");
>      return 0;
>    }
>
> - Jon
>----- Original Message -----
>From: Wei Xu <weixuz@yesic.com>
>To: <cygwin@sourceware.cygnus.com>
>Sent: Wednesday, July 07, 1999 10:15 AM
>Subject: gcc library
>
>
>> Dear all,
>>
>> I an new to this software. I have download the full verions of  Cygwin.
>When
>> I try to testing the =
>> gcc with the following C++ code:
>>
>> #include <iostream.h>
>>
>> int main (int argc, char **argv)
>> {
>>   cout << "Hello world\n";
>>     printf("Hello world\n");
>> }
>>
>>
>> It says:
>>
>> try.cc: In function `int main(int, char **)':
>> try.cc:6: warning: implicit declaration of function `int printf(...)'
>> C:\WINDOWS\TEMP\ccz14xFI.o(.text+0x1e):try.cc: undefined reference to =
>> `cout'
>> C:\WINDOWS\TEMP\ccz14xFI.o(.text+0x23):try.cc: undefined reference to =
>> `ostream::
>> operator<<(char const *)'
>> collect2: ld returned 1 exit status
>>
>> I can figure out what is wrong with my installation or library?=20
>> Here is my set:
>>
><snipped...>
>


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From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Wei  Xu" <weixuz@yesic.com>
To: "Jonathan Pryor" <jonpryor@vt.edu>, <cygwin@sourceware.cygnus.com>
Subject: Re: gcc library
Date: Sat, 31 Jul 1999 18:34:00 -0000
Message-ID: <008f01bec888$9535efc0$c3dba1d1@Xu.toronto.vr1.com>
X-SW-Source: 1999-07n/msg00129.html
Message-ID: <19990731183400.ktOUkNF1I39xqE9T0H6Ak4DNUFWPO0q0L4AqG8vN2oI@z>

Thanks for your reply.

Your example works with g++. When I use gcc, still the same mistake:
undefined reference.


-----Original Message-----
From: Jonathan Pryor <jonpryor@vt.edu>
To: Wei Xu <weixuz@yesic.com>; cygwin@sourceware.cygnus.com
<cygwin@sourceware.cygnus.com>
Date: Wednesday, July 07, 1999 10:40 AM
Subject: Re: gcc library


><iostream.h> doesn't provide the prototype for printf.
>You need to include <stdio.h>.
>
>Also, the use of <iostream.h> has been deprecated by
>the C++ standard.  You should use <iostream>, which
>places everything in the std namespace.  Additionally,
><stdio.h> has been deprecated in favor of <cstdio>,
>which also places the contents into the std namespace;
>however, not all compilers support <cstdio>, so I tend
>to stick with <stdio.h>...
>
>    // example....
>    #include <iostream>
>    #include <stdio.h>
>
>    using namespace std;
>
>    int main ()
>    {
>      cout << "Hello, world!\n";
>      printf ("Hello again, world!\n");
>      return 0;
>    }
>
> - Jon
>----- Original Message -----
>From: Wei Xu <weixuz@yesic.com>
>To: <cygwin@sourceware.cygnus.com>
>Sent: Wednesday, July 07, 1999 10:15 AM
>Subject: gcc library
>
>
>> Dear all,
>>
>> I an new to this software. I have download the full verions of  Cygwin.
>When
>> I try to testing the =
>> gcc with the following C++ code:
>>
>> #include <iostream.h>
>>
>> int main (int argc, char **argv)
>> {
>>   cout << "Hello world\n";
>>     printf("Hello world\n");
>> }
>>
>>
>> It says:
>>
>> try.cc: In function `int main(int, char **)':
>> try.cc:6: warning: implicit declaration of function `int printf(...)'
>> C:\WINDOWS\TEMP\ccz14xFI.o(.text+0x1e):try.cc: undefined reference to =
>> `cout'
>> C:\WINDOWS\TEMP\ccz14xFI.o(.text+0x23):try.cc: undefined reference to =
>> `ostream::
>> operator<<(char const *)'
>> collect2: ld returned 1 exit status
>>
>> I can figure out what is wrong with my installation or library?=20
>> Here is my set:
>>
><snipped...>
>


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