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diff --git a/doc/argot_asprintf.3 b/doc/argot_asprintf.3 new file mode 100644 index 0000000..fa86190 --- /dev/null +++ b/doc/argot_asprintf.3 @@ -0,0 +1,88 @@ +.\" This file is part of argot -*- 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 ARGOT_ASPRINTF 3 "May 4, 2011" "ARGOT" "Grecs User Reference" +.SH NAME +argot_asprintf, argot_vasprintf \- print to allocated string +.SH SYNOPSIS +.nf +.B #include <argot.h> +.sp +.BI "int argot_vasprintf(char " "**pbuf" ", size_t " "*psize" \ + ", const char " "*format" ", " +.ti +17 +.BI "va_list " "ap" ); +.br +.BI "int argot_asprintf(char " "**pbuf" ", size_t " "*psize" \ + ", const char *" "format" ", ...);" +.SH DESCRIPTION +The functions +.BI argot_asprintf () +and +.BI argot_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 argot_malloc (3) +is used. To reallocate memory, both functions use +.BR argot_realloc (3). +.SH RETURN VALUE +None. If memory allocation fails, a diagnostics is output and the +program is terminated. +.SH "SEE ALSO" +.BR argot_malloc (3), +.BR argot_realloc (3). +.SH AUTHORS +Sergey Poznyakoff +.SH "BUG REPORTS" +Report bugs to <gray+argot@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/argot>. +.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: + |