DPRINTF(3)                          Linux Programmer's Manual                          DPRINTF(3)



NAME
       dprintf, vdprintf - print to a file descriptor

SYNOPSIS
       #include <stdio.h>

       int dprintf(int fd, const char *format, ...);

       int vdprintf(int fd, const char *format, va_list ap);

   Feature Test Macro Requirements for glibc (see feature_test_macros(7)):

       dprintf(), vdprintf():
           Since glibc 2.10:
               _XOPEN_SOURCE >= 700 || _POSIX_C_SOURCE >= 200809L
           Before glibc 2.10:
               _GNU_SOURCE

DESCRIPTION
       The  functions dprintf() and vdprintf() (as found in the glibc2 library) are exact analogs
       of fprintf(3) and vfprintf(3), except that they output to a file descriptor fd instead  of
       to a stdio stream.

CONFORMING TO
       These functions are GNU extensions that are nowadays specified in POSIX.1-2008.

SEE ALSO
       printf(3)

COLOPHON
       This  page  is  part of release 3.74 of the Linux man-pages project.  A description of the
       project, information about reporting bugs, and the latest version of  this  page,  can  be
       found at http://www.kernel.org/doc/man-pages/.



GNU                                         2010-09-15                                 DPRINTF(3)