projects / thirdparty / man-pages.git / blame
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| bf5a7247 | 1 | .\" Copyright (c) 1995 by Jim Van Zandt <jrv@vanzandt.mv.com> |
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2 | .\" |
| 3 | .\" Permission is granted to make and distribute verbatim copies of this | |
| 4 | .\" manual provided the copyright notice and this permission notice are | |
| 5 | .\" preserved on all copies. | |
| 6 | .\" | |
| 7 | .\" Permission is granted to copy and distribute modified versions of this | |
| 8 | .\" manual under the conditions for verbatim copying, provided that the | |
| 9 | .\" entire resulting derived work is distributed under the terms of a | |
| 10 | .\" permission notice identical to this one. | |
| c13182ef | 11 | .\" |
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12 | .\" Since the Linux kernel and libraries are constantly changing, this |
| 13 | .\" manual page may be incorrect or out-of-date. The author(s) assume no | |
| 14 | .\" responsibility for errors or omissions, or for damages resulting from | |
| 15 | .\" the use of the information contained herein. The author(s) may not | |
| 16 | .\" have taken the same level of care in the production of this manual, | |
| 17 | .\" which is licensed free of charge, as they might when working | |
| 18 | .\" professionally. | |
| c13182ef | 19 | .\" |
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20 | .\" Formatted or processed versions of this manual, if unaccompanied by |
| 21 | .\" the source, must acknowledge the copyright and authors of this work. | |
| 22 | .\" License. | |
| e6a44d61 | 23 | .TH GETW 3 2010-09-26 "GNU" "Linux Programmer's Manual" |
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24 | .SH NAME |
| 25 | getw, putw \- input and output of words (ints) | |
| 26 | .SH SYNOPSIS | |
| 27 | .nf | |
| 28 | .B #include <stdio.h> | |
| 29 | .sp | |
| 30 | .BI "int getw(FILE *" stream ); | |
| 5895e7eb | 31 | |
| fea681da | 32 | .BI "int putw(int " w ", FILE *" stream ); |
| c8250206 | 33 | .fi |
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34 | .sp |
| 35 | .in -4n | |
| 36 | Feature Test Macro Requirements for glibc (see | |
| 37 | .BR feature_test_macros (7)): | |
| 38 | .in | |
| 39 | .sp | |
| 68d2edce | 40 | .BR getw (), |
| 35c25d45 | 41 | .BR putw (): |
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42 | .ad l |
| 43 | .PD 0 | |
| 44 | .RS 4 | |
| 45 | .TP 4 | |
| 46 | Since glibc 2.3.3: | |
| 47 | _SVID_SOURCE || _BSD_SOURCE || | |
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48 | .br |
| 49 | (_XOPEN_SOURCE && | |
| 50 | !(_POSIX_C_SOURCE\ >=\ 200112L || _XOPEN_SOURCE\ >=\ 600)) | |
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51 | .TP |
| 52 | Before glibc 2.3.3: | |
| 53 | _SVID_SOURCE || _BSD_SOURCE || _XOPEN_SOURCE | |
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54 | .RE |
| 55 | .PD | |
| 56 | .ad | |
| fea681da | 57 | .SH DESCRIPTION |
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58 | .BR getw () |
| 59 | reads a word (that is, an \fIint\fP) from \fIstream\fP. | |
| 1c44bd5b | 60 | It's provided for compatibility with SVr4. |
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61 | We recommend you use |
| 62 | .BR fread (3) | |
| 63 | instead. | |
| fea681da | 64 | .P |
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65 | .BR putw () |
| 66 | writes the word \fIw\fP (that is, | |
| 1c44bd5b | 67 | an \fIint\fP) to \fIstream\fP. |
| 35478399 | 68 | It is provided for compatibility with SVr4, but we recommend you use |
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69 | .BR fwrite (3) |
| 70 | instead. | |
| 47297adb | 71 | .SH RETURN VALUE |
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72 | Normally, |
| 73 | .BR getw () | |
| 74 | returns the word read, and | |
| 75 | .BR putw () | |
| 76 | returns 0. | |
| fea681da | 77 | On error, they return \fBEOF\fP. |
| 47297adb | 78 | .SH CONFORMING TO |
| de4c786e | 79 | SVr4, SUSv2. Not present in POSIX.1-2001. |
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80 | .SH BUGS |
| 81 | The value returned on error is also a legitimate data value. | |
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82 | .BR ferror (3) |
| 83 | can be used to distinguish between the two cases. | |
| 47297adb | 84 | .SH SEE ALSO |
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85 | .BR ferror (3), |
| 86 | .BR fread (3), | |
| 87 | .BR fwrite (3), | |
| 88 | .BR getc (3), | |
| 89 | .BR putc (3) |