1GETW(3)                    Linux Programmer's Manual                   GETW(3)
2
3
4

NAME

6       getw, putw - input and output of words (ints)
7

SYNOPSIS

9       #include <stdio.h>
10
11       int getw(FILE *stream);
12       int putw(int w, FILE *stream);
13
14   Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
15
16       getw(), putw():
17           Since glibc 2.3.3:
18               _XOPEN_SOURCE && ! (_POSIX_C_SOURCE >= 200112L)
19                   || /* Glibc since 2.19: */ _DEFAULT_SOURCE
20                   || /* Glibc <= 2.19: */ _BSD_SOURCE || _SVID_SOURCE
21           Before glibc 2.3.3:
22               _SVID_SOURCE || _BSD_SOURCE || _XOPEN_SOURCE
23

DESCRIPTION

25       getw()  reads  a word (that is, an int) from stream.  It's provided for
26       compatibility with SVr4.  We recommend you use fread(3) instead.
27
28       putw() writes the word w (that is, an int) to stream.  It  is  provided
29       for  compatibility  with  SVr4,  but we recommend you use fwrite(3) in‐
30       stead.
31

RETURN VALUE

33       Normally, getw() returns the word read, and putw() returns 0.   On  er‐
34       ror, they return EOF.
35

ATTRIBUTES

37       For  an  explanation  of  the  terms  used  in  this  section,  see at‐
38       tributes(7).
39
40       ┌────────────────────────────────────────────┬───────────────┬─────────┐
41       │Interface                                   │ Attribute     │ Value   │
42       ├────────────────────────────────────────────┼───────────────┼─────────┤
43       │getw(), putw()                              │ Thread safety │ MT-Safe │
44       └────────────────────────────────────────────┴───────────────┴─────────┘
45

CONFORMING TO

47       SVr4, SUSv2.  Not present in POSIX.1.
48

BUGS

50       The value returned on error is also a legitimate data value.  ferror(3)
51       can be used to distinguish between the two cases.
52

SEE ALSO

54       ferror(3), fread(3), fwrite(3), getc(3), putc(3)
55

COLOPHON

57       This  page  is  part of release 5.12 of the Linux man-pages project.  A
58       description of the project, information about reporting bugs,  and  the
59       latest     version     of     this    page,    can    be    found    at
60       https://www.kernel.org/doc/man-pages/.
61
62
63
64GNU                               2021-03-22                           GETW(3)
Impressum