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[/] [openrisc/] [trunk/] [gnu-stable/] [newlib-1.18.0/] [newlib/] [libc/] [stdio/] [dprintf.c] - Rev 816
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/* Copyright 2005, 2007 Shaun Jackman * Permission to use, copy, modify, and distribute this software * is freely granted, provided that this notice is preserved. */ /* FUNCTION <<dprintf>>, <<vdprintf>>---print to a file descriptor INDEX dprintf INDEX _dprintf_r INDEX vdprintf INDEX _vdprintf_r ANSI_SYNOPSIS #include <stdio.h> #include <stdarg.h> int dprintf(int <[fd]>, const char *<[format]>, ...); int vdprintf(int <[fd]>, const char *<[format]>, va_list <[ap]>); int _dprintf_r(struct _reent *<[ptr]>, int <[fd]>, const char *<[format]>, ...); int _vdprintf_r(struct _reent *<[ptr]>, int <[fd]>, const char *<[format]>, va_list <[ap]>); DESCRIPTION <<dprintf>> and <<vdprintf>> allow printing a format, similarly to <<printf>>, but write to a file descriptor instead of to a <<FILE>> stream. The functions <<_dprintf_r>> and <<_vdprintf_r>> are simply reentrant versions of the functions above. RETURNS The return value and errors are exactly as for <<write>>, except that <<errno>> may also be set to <<ENOMEM>> if the heap is exhausted. PORTABILITY This function is originally a GNU extension in glibc and is not portable. Supporting OS subroutines required: <<sbrk>>, <<write>>. */ #include <_ansi.h> #include <reent.h> #include <stdio.h> #include <unistd.h> #include <stdarg.h> #include "local.h" int _DEFUN(_dprintf_r, (ptr, fd, format), struct _reent *ptr _AND int fd _AND const char *format _DOTS) { va_list ap; int n; _REENT_SMALL_CHECK_INIT (ptr); va_start (ap, format); n = _vdprintf_r (ptr, fd, format, ap); va_end (ap); return n; } #ifndef _REENT_ONLY int _DEFUN(dprintf, (fd, format), int fd _AND const char *format _DOTS) { va_list ap; int n; struct _reent *ptr = _REENT; _REENT_SMALL_CHECK_INIT (ptr); va_start (ap, format); n = _vdprintf_r (ptr, fd, format, ap); va_end (ap); return n; } #endif /* ! _REENT_ONLY */
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