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man:getw

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

NAME

     getw, putw - input and output of words (ints)

SYNOPSIS

     #include <stdio.h>
     int getw(FILE *stream);
     int putw(int w, FILE *stream);
 Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
     getw(), putw():
         Since glibc 2.3.3:
             _XOPEN_SOURCE && ! (_POSIX_C_SOURCE >= 200112L)
                 || /* Glibc since 2.19: */ _DEFAULT_SOURCE
                 || /* Glibc versions <= 2.19: */ _BSD_SOURCE ||
             _SVID_SOURCE
         Before glibc 2.3.3:
             _SVID_SOURCE || _BSD_SOURCE || _XOPEN_SOURCE

DESCRIPTION

     getw() reads a word (that is, an int) from stream.  It's  provided  for
     compatibility with SVr4.  We recommend you use fread(3) instead.
     putw()  writes  the word w (that is, an int) to stream.  It is provided
     for compatibility  with  SVr4,  but  we  recommend  you  use  fwrite(3)
     instead.

RETURN VALUE

     Normally,  getw()  returns  the  word  read,  and putw() returns 0.  On
     error, they return EOF.

ATTRIBUTES

     For  an  explanation  of  the  terms  used   in   this   section,   see
     attributes(7).
     +---------------+---------------+---------+
     |Interface      | Attribute     | Value   |
     +---------------+---------------+---------+
     |getw(), putw() | Thread safety | MT-Safe |
     +---------------+---------------+---------+

CONFORMING TO

     SVr4, SUSv2.  Not present in POSIX.1.

BUGS

     The value returned on error is also a legitimate data value.  ferror(3)
     can be used to distinguish between the two cases.

SEE ALSO

     ferror(3), fread(3), fwrite(3), getc(3), putc(3)

COLOPHON

     This  page  is  part of release 4.16 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
     https://www.kernel.org/doc/man-pages/.

GNU 2016-03-15 GETW(3)

/data/webs/external/dokuwiki/data/pages/man/getw.txt · Last modified: 2019/05/17 09:47 by 127.0.0.1

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