mirror of
https://github.com/vgough/encfs.git
synced 2024-11-28 19:03:42 +01:00
79 lines
2.2 KiB
C++
79 lines
2.2 KiB
C++
/* Class autosprintf - formatted output to an ostream.
|
|
Copyright (C) 2002 Free Software Foundation, Inc.
|
|
Written by Bruno Haible <bruno@clisp.org>, 2002.
|
|
|
|
This program is free software; you can redistribute it and/or modify it
|
|
under the terms of the GNU Library General Public License as published
|
|
by the Free Software Foundation; either version 2, or (at your option)
|
|
any later version.
|
|
|
|
This program 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
|
|
Library General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Library General Public
|
|
License along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
|
|
USA. */
|
|
|
|
/* Tell glibc's <stdio.h> to provide a prototype for vasprintf().
|
|
This must come before <config.h> because <config.h> may include
|
|
<features.h>, and once <features.h> has been included, it's too late. */
|
|
#ifndef _GNU_SOURCE
|
|
# define _GNU_SOURCE 1
|
|
#endif
|
|
|
|
/* Specification. */
|
|
#include "autosprintf.h"
|
|
|
|
#include <stdarg.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
//#include "lib-asprintf.h"
|
|
#include <stdio.h>
|
|
|
|
namespace gnu
|
|
{
|
|
|
|
/* Constructor: takes a format string and the printf arguments. */
|
|
autosprintf::autosprintf (const char *format, ...)
|
|
{
|
|
va_list args;
|
|
va_start (args, format);
|
|
if (vasprintf (&str, format, args) < 0)
|
|
str = NULL;
|
|
va_end (args);
|
|
}
|
|
|
|
/* Copy constructor. Necessary because the destructor is nontrivial. */
|
|
autosprintf::autosprintf (const autosprintf& src)
|
|
{
|
|
str = (src.str != NULL ? strdup (src.str) : NULL);
|
|
}
|
|
|
|
/* Destructor: frees the temporarily allocated string. */
|
|
autosprintf::~autosprintf ()
|
|
{
|
|
free (str);
|
|
}
|
|
|
|
/* Conversion to string. */
|
|
autosprintf::operator char * () const
|
|
{
|
|
if (str != NULL)
|
|
{
|
|
size_t length = strlen (str) + 1;
|
|
char *copy = new char[length];
|
|
memcpy (copy, str, length);
|
|
return copy;
|
|
}
|
|
else
|
|
return NULL;
|
|
}
|
|
autosprintf::operator std::string () const
|
|
{
|
|
return std::string (str ? str : "(error in autosprintf)");
|
|
}
|
|
}
|