getw(3) - Linux manual page (original) (raw)

getw(3) Library Functions Manual getw(3)

NAME top

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

LIBRARY top

   Standard C library (_libc_, _-lc_)

SYNOPSIS top

   **#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 >= 2.19: */ _DEFAULT_SOURCE
               || /* glibc <= 2.19: */ _BSD_SOURCE || _SVID_SOURCE
       Before glibc 2.3.3:
           _SVID_SOURCE || _BSD_SOURCE || _XOPEN_SOURCE

DESCRIPTION top

   **getw**() reads a word (that is, an _int_) from _stream_.  It's provided
   for compatibility with SVr4.  We recommend you use [fread(3)](../man3/fread.3.html)
   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)](../man3/fwrite.3.html) instead.

RETURN VALUE top

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

ATTRIBUTES top

   For an explanation of the terms used in this section, see
   [attributes(7)](../man7/attributes.7.html).
   ┌──────────────────────────────────────┬───────────────┬─────────┐
   │ **Interface** │ **Attribute** │ **Value** │
   ├──────────────────────────────────────┼───────────────┼─────────┤
   │ **getw**(), **putw**()                       │ Thread safety │ MT-Safe │
   └──────────────────────────────────────┴───────────────┴─────────┘

STANDARDS top

   None.

HISTORY top

   SVr4, SUSv2.

BUGS top

   The value returned on error is also a legitimate data value.
   [ferror(3)](../man3/ferror.3.html) can be used to distinguish between the two cases.

SEE ALSO top

   [ferror(3)](../man3/ferror.3.html), [fread(3)](../man3/fread.3.html), [fwrite(3)](../man3/fwrite.3.html), [getc(3)](../man3/getc.3.html), [putc(3)](../man3/putc.3.html)

COLOPHON top

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Linux man-pages 6.10 2024-07-23 getw(3)

Pages that refer to this page:stdio(3)