annotate buf_putc.3 @ 16:54638f36f774

misc: update .hgignore
author David Demelier <markand@malikania.fr>
date Wed, 16 Dec 2020 16:11:16 +0100
parents b1991ee4451d
children 939fe74cd80a
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1 .\"
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2 .\" buf_putc.3 -- simple string buffer for C
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3 .\"
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4 .\" Copyright (c) 2019-2020 David Demelier <markand@malikania.fr>
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5 .\"
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6 .\" Permission to use, copy, modify, and/or distribute this software for any
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7 .\" purpose with or without fee is hereby granted, provided that the above
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8 .\" copyright notice and this permission notice appear in all copies.
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9 .\"
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10 .\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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11 .\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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12 .\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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13 .\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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14 .\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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15 .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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16 .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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17 .\"
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18 .Dd October 29, 2019-2020
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19 .Dt BUF_PUTC 3
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20 .Os
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21 .\" NAME
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22 .Sh NAME
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23 .Nm buf_putc
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24 .Nd append a single character
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25 .\" SYNOPSIS
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26 .Sh SYNOPSIS
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27 .In buf.h
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28 .Ft bool
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29 .Fn buf_putc "struct buf *b" "char c"
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30 .\" DESCRIPTION
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31 .Sh DESCRIPTION
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32 Append the
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33 .Fa c
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34 character into the buffer specified by
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35 .Fa b .
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36 .Pp
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37 This function should be avoided for performance reasons unless you reserve more
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38 storage using
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39 .Fn buf_reserve
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40 prior to calling this function. See
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41 .Xr buf_reserve 3
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42 for more details.
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43 .\" RETURN VALUE
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44 .Sh RETURN VALUE
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45 The
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46 .Fn buf_putc
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47 function returns false in case of error and
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48 .Va errno
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49 is set to indicate the error.
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50 .\" ERRORS
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51 .Sh ERRORS
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52 .Bl -tag -width Er
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53 .It Bq Er ENOMEM
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54 Couldn't allocate more memory.
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55 .El
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56 .\" SEE ALSO
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57 .Sh SEE ALSO
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58 .Xr libbuf 3 ,
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59 .Xr buf_reserve 3
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60 .\" AUTHORS
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61 .Sh AUTHORS
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62 The
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63 .Nm libbuf
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64 library was written by
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65 .An David Demelier <markand@malikania.fr>