libstdc++-v3/testsuite/tr1/8_c_compatibility/cstdio/functions.cc

   1 // { dg-do compile }
   2
   3 // 2006-02-05  Paolo Carlini  <pcarlini@suse.de>
   4 //
   5 // Copyright (C) 2006-2024 Free Software Foundation, Inc.
   6 //
   7 // This file is part of the GNU ISO C++ Library.  This library is free
   8 // software; you can redistribute it and/or modify it under the
   9 // terms of the GNU General Public License as published by the
  10 // Free Software Foundation; either version 3, or (at your option)
  11 // any later version.
  12 //
  13 // This library is distributed in the hope that it will be useful,
  14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 // GNU General Public License for more details.
  17 //
  18 // You should have received a copy of the GNU General Public License along
  19 // with this library; see the file COPYING3.  If not see
  20 // <http://www.gnu.org/licenses/>.
  21
  22 // 8.24 Additions to header <cstdio>
  23
  24 #include <tr1/cstdio>
  25 #include <cstdarg>
  26 #include <cstddef>
  27
  28 void test01(int dummy, ...)
  29 {
  30   std::va_list ap;
  31   va_start(ap, dummy);
  32
  33 #if _GLIBCXX_USE_C99_STDIO
  34
  35   char* s = 0;
  36   const char* cs = 0;
  37   const char* format = "%i";
  38   FILE* stream = va_arg(ap, FILE*);
  39   std::size_t n = 0;
  40
  41   int ret;
  42
  43   ret = std::tr1::snprintf(s, n, format, dummy);
  44   ret = std::tr1::vsnprintf(s, n, format, ap);
  45
  46   ret = std::tr1::vfscanf(stream, format, ap);
  47   ret = std::tr1::vscanf(format, ap);
  48   ret = std::tr1::vsscanf(cs, format, ap);
  49   ret = ret; // Suppress unused warning.
  50
  51 #endif
  52 }