newlib/libc/stdio/printf.c

   1 /*
   2  * Copyright (c) 1990 The Regents of the University of California.
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms are permitted
   6  * provided that the above copyright notice and this paragraph are
   7  * duplicated in all such forms and that any documentation,
   8  * and/or other materials related to such
   9  * distribution and use acknowledge that the software was developed
  10  * by the University of California, Berkeley.  The name of the
  11  * University may not be used to endorse or promote products derived
  12  * from this software without specific prior written permission.
  13  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
  14  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
  15  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  16  */
  17 /* doc in sprintf.c */
  18
  19 #include <_ansi.h>
  20 #include <reent.h>
  21 #include <stdio.h>
  22 #include <stdarg.h>
  23 #include "local.h"
  24
  25 int
  26 _printf_r (struct _reent *ptr,
  27        const char *__restrict fmt, ...)
  28 {
  29   int ret;
  30   va_list ap;
  31
  32   _REENT_SMALL_CHECK_INIT (ptr);
  33   va_start (ap, fmt);
  34   ret = _vfprintf_r (ptr, _stdout_r (ptr), fmt, ap);
  35   va_end (ap);
  36   return ret;
  37 }
  38
  39 #ifdef _NANO_FORMATTED_IO
  40 int
  41 _iprintf_r (struct _reent *, const char *, ...)
  42        _ATTRIBUTE ((__alias__("_printf_r")));
  43 #endif
  44
  45 #ifndef _REENT_ONLY
  46
  47 int
  48 printf (const char *__restrict fmt, ...)
  49 {
  50   int ret;
  51   va_list ap;
  52   struct _reent *ptr = _REENT;
  53
  54   _REENT_SMALL_CHECK_INIT (ptr);
  55   va_start (ap, fmt);
  56   ret = _vfprintf_r (ptr, _stdout_r (ptr), fmt, ap);
  57   va_end (ap);
  58   return ret;
  59 }
  60
  61 #ifdef _NANO_FORMATTED_IO
  62 int
  63 iprintf (const char *, ...)
  64        _ATTRIBUTE ((__alias__("printf")));
  65 #endif
  66 #endif /* ! _REENT_ONLY */