dev-cpp-users

[Dev-C++] newbie problem

[Kenneth A. <dig...@ho...>]

i tried to make a program that uses both c and c++ commands.  well, i'm new 
to this so it didn't work.  the error that i got was "call of overloaded 
'CeFunction()' is ambiguous".  here's my code:

#include <stdio.h>
#include <iostream.h>

int CeFunction()
{
     printf("In C mode.\n");
     return 0;
}

extern "C"
{
       int CeFunction();
}

int main()
{
  cout << "In C++ mode.\n";
  CeFunction();
  cout << "Back in C++ mode.\n";
  return 0;
}

if someone could explain what i did wrong here i would be very thankful.  go 
easy on me please, i'm a newb. :)



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Re: [Dev-C++] newbie problem

[David M. <ci...@ya...>]

I got it to work by moving the declaration above the implementation

all you have to do is move
> extern "C"
> {
>        int CeFunction();
> }
to just above 
> int CeFunction()
> {
>      printf("In C mode.\n");
>      return 0;
> }

--- Kenneth Armstrong <dig...@ho...> wrote:
> i tried to make a program that uses both c and c++ commands.  well,
> i'm new 
> to this so it didn't work.  the error that i got was "call of
> overloaded 
> 'CeFunction()' is ambiguous".  here's my code:
> 
> #include <stdio.h>
> #include <iostream.h>
> 
> int CeFunction()
> {
>      printf("In C mode.\n");
>      return 0;
> }
> 
> extern "C"
> {
>        int CeFunction();
> }
> 
> int main()
> {
>   cout << "In C++ mode.\n";
>   CeFunction();
>   cout << "Back in C++ mode.\n";
>   return 0;
> }
> 
> if someone could explain what i did wrong here i would be very
> thankful.  go 
> easy on me please, i'm a newb. :)
> 
> 
> 
> _________________________________________________________________
> Join the world’s largest e-mail service with MSN Hotmail. 
> http://www.hotmail.com
> 
> 
> _______________________________________________
> Dev-cpp-users mailing list
> Dev...@li...
> https://lists.sourceforge.net/lists/listinfo/dev-cpp-users


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RE: [Dev-C++] newbie problem

[Ioannis V. <no...@ho...>]

> -----Original Message-----
> From: dev...@li... 
> [mailto:dev...@li...] On Behalf 
> Of Kenneth Armstrong
> Sent: Wednesday, April 10, 2002 5:35 AM
> To: dev...@so...
> Subject: [Dev-C++] newbie problem
> 
> 
> i tried to make a program that uses both c and c++ commands.  
> well, i'm new
> to this so it didn't work.  the error that i got was "call of 
> overloaded
> 'CeFunction()' is ambiguous".  here's my code:


extern "C" is used for functions defined in a .c file, that is to
interoperate with C stuff e.g. a C library. In your case extern "C" is
not needed since you programmed in C++ (even in C-style C++).



Ioannis

* Ioannis Vranos
* Programming pages: http://www.noicys.cjb.net
* Alternative URL: http://run.to/noicys

Re: [Dev-C++] newbie problem

[Ricardo R. <ri...@po...>]

another solution if it can be of help:

#include <stdio.h>
#include <stdlib.h>
#include <iostream.h>

extern "C"
{
      int CeFunction()
      {
      printf("In C mode.\n");
      return 0;
      };
}

int main()
{
 cout << "In C++ mode.\n";
 CeFunction();
 cout << "Back in C++ mode.\n";
 system("PAUSE");
 return 0;
}