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authorSergey Poznyakoff <gray@gnu.org>2016-08-08 05:53:46 (GMT)
committer Sergey Poznyakoff <gray@gnu.org>2016-08-08 05:53:46 (GMT)
commitbd5b7c29986b8106595f35cbe303fc44cf8c4d0d (patch) (side-by-side diff)
tree84b39cc6d228b3642f7105c48162193a05982882 /doc/grecs_asprintf.3
parent102d1b9c1a94548dfa0c498845c77933db6a7738 (diff)
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-.\" This file is part of grecs -*- nroff -*-
-.\" Copyright (C) 2007-2016 Sergey Poznyakoff
-.\"
-.\" Grecs is free software; you can redistribute it and/or modify
-.\" it under the terms of the GNU General Public License as published by
-.\" the Free Software Foundation; either version 3, or (at your option)
-.\" any later version.
-.\"
-.\" Grecs is distributed in the hope that it will be useful,
-.\" but WITHOUT ANY WARRANTY; without even the implied warranty of
-.\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-.\" GNU General Public License for more details.
-.\"
-.\" You should have received a copy of the GNU General Public License
-.\" along with Grecs. If not, see <http://www.gnu.org/licenses/>.
-.\"
-.TH GRECS_ASPRINTF 3 "May 4, 2011" "GRECS" "Grecs User Reference"
-.SH NAME
-grecs_asprintf, grecs_vasprintf \- print to allocated string
-.SH SYNOPSIS
-.nf
-.B #include <grecs.h>
-.sp
-.BI "int grecs_vasprintf(char " "**pbuf" ", size_t " "*psize" \
- ", const char " "*format" ", "
-.ti +17
-.BI "va_list " "ap" );
-.br
-.BI "int grecs_asprintf(char " "**pbuf" ", size_t " "*psize" \
- ", const char *" "format" ", ...);"
-.SH DESCRIPTION
-The functions
-.BI grecs_asprintf ()
-and
-.BI grecs_vasprintf ()
-are analogs of
-.BR sprintf (3)
-and
-.BR vsprintf (3),
-except that they operate on dynamically allocated buffers.
-.PP
-If, on entry to the function, \fB*pbuf\fR is NULL and \fB*psize\fR is
-0, both functions will allocate a buffer large enough to hold the
-formatted message and will fill it with the formatted text.
-.PP
-If \fB*pbuf\fR is not NULL, \fBpsize\fR must point to its actual size.
-If that size is not large enough to accomodate the formatted message,
-the buffer will be reallocated accordingly, otherwise it will remain
-unchanged.
-.PP
-In both cases, if the buffer has been reallocated, on return
-\fBpbuf\fR will contain its new address and \fBpsize\fR its new size.
-.PP
-For initial allocation,
-.BR grecs_malloc (3)
-is used. To reallocate memory, both functions use
-.BR grecs_realloc (3).
-.SH RETURN VALUE
-None. If memory allocation fails, a diagnostics is output and the
-program is terminated.
-.SH "SEE ALSO"
-.BR grecs_malloc (3),
-.BR grecs_realloc (3).
-.SH AUTHORS
-Sergey Poznyakoff
-.SH "BUG REPORTS"
-Report bugs to <gray+grecs@gnu.org.ua>.
-.SH COLOPHON
-The \fBGrecs\fR library is constantly changing, so this manual page
-may be incorrect or out-of-date. For the latest copy of \fBGrecs\fR
-documentation, visit <http://www.gnu.org.ua/software/grecs>.
-.SH COPYRIGHT
-Copyright \(co 2011 Sergey Poznyakoff
-.br
-.na
-License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
-.br
-.ad
-This is free software: you are free to change and redistribute it.
-There is NO WARRANTY, to the extent permitted by law.
-.\" Local variables:
-.\" eval: (add-hook 'write-file-hooks 'time-stamp)
-.\" time-stamp-start: ".TH [A-Z_][A-Z0-9_]* [0-9] \""
-.\" time-stamp-format: "%:B %:d, %:y"
-.\" time-stamp-end: "\""
-.\" time-stamp-line-limit: 20
-.\" end:
-

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