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c++/1898: problems compiling with varargs



>Number:         1898
>Category:       c++
>Synopsis:       problems compiling with varargs
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          rejects-legal
>Submitter-Id:   net
>Arrival-Date:   Tue Feb 06 20:56:00 PST 2001
>Closed-Date:
>Last-Modified:
>Originator:     George T. Fleming
>Release:        gcc version 2.97 20010122 (experimental)
>Organization:
>Environment:
IRIX 5.3 IP20 mips
binutils-2.9.1
libstdc++-v2
>Description:
The following legal c code compiles with gcc
but not g++:

#include <stdio.h>
#include <stdarg.h>

char buffer[80] ;

void my_sprintf(const char *format, ...)
{
  va_list ap ;
  va_start(ap, format) ;
  vsprintf(buffer, format, ap) ;
  va_end(ap) ;
}

Here's the error message:

my_sprintf.c: In function `void my_sprintf(const char*, ...)':
my_sprintf.c:10: cannot convert `void*' to `char*' for argument `3' to `int
   vsprintf(char*, const char*, char*)'

n.b. I'm not using libstdc++-v3 'cause it doesn't compile
yet on mips-sgi-irix5.3.
>How-To-Repeat:

>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted:
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Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename="my_sprintf.ii.bz2"

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