newlib/libc/stdio/diprintf.c

   1 /* Copyright (C) 2005, 2007 Shaun Jackman
   2  * Permission to use, copy, modify, and distribute this software
   3  * is freely granted, provided that this notice is preserved.
   4  */
   5
   6 /*
   7 FUNCTION
   8 <<diprintf>>, <<vdiprintf>>---print to a file descriptor (integer only)
   9
  10 INDEX
  11         diprintf
  12 INDEX
  13         _diprintf_r
  14 INDEX
  15         vdiprintf
  16 INDEX
  17         _vdiprintf_r
  18
  19 SYNOPSIS
  20         #include <stdio.h>
  21         #include <stdarg.h>
  22         int diprintf(int <[fd]>, const char *<[format]>, ...);
  23         int vdiprintf(int <[fd]>, const char *<[format]>, va_list <[ap]>);
  24         int _diprintf_r(struct _reent *<[ptr]>, int <[fd]>,
  25                         const char *<[format]>, ...);
  26         int _vdiprintf_r(struct _reent *<[ptr]>, int <[fd]>,
  27                         const char *<[format]>, va_list <[ap]>);
  28
  29 DESCRIPTION
  30 <<diprintf>> and <<vdiprintf>> are similar to <<dprintf>> and <<vdprintf>>,
  31 except that only integer format specifiers are processed.
  32
  33 The functions <<_diprintf_r>> and <<_vdiprintf_r>> are simply
  34 reentrant versions of the functions above.
  35
  36 RETURNS
  37 Similar to <<dprintf>> and <<vdprintf>>.
  38
  39 PORTABILITY
  40 This set of functions is an integer-only extension, and is not portable.
  41
  42 Supporting OS subroutines required: <<sbrk>>, <<write>>.
  43 */
  44
  45 #include <_ansi.h>
  46 #include <reent.h>
  47 #include <stdio.h>
  48 #include <unistd.h>
  49 #include <stdarg.h>
  50
  51 int
  52 _diprintf_r (struct _reent *ptr,
  53        int fd,
  54        const char *format, ...)
  55 {
  56   va_list ap;
  57   int n;
  58
  59   va_start (ap, format);
  60   n = _vdiprintf_r (ptr, fd, format, ap);
  61   va_end (ap);
  62   return n;
  63 }
  64
  65 #ifndef _REENT_ONLY
  66
  67 int
  68 diprintf (int fd,
  69        const char *format, ...)
  70 {
  71   va_list ap;
  72   int n;
  73
  74   va_start (ap, format);
  75   n = _vdiprintf_r (_REENT, fd, format, ap);
  76   va_end (ap);
  77   return n;
  78 }
  79
  80 #endif /* ! _REENT_ONLY */