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[/] [open8_urisc/] [trunk/] [gnu/] [binutils/] [libiberty/] [asprintf.c] - Rev 179
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/* Like sprintf but provides a pointer to malloc'd storage, which must be freed by the caller. Copyright (C) 1997, 2003 Free Software Foundation, Inc. Contributed by Cygnus Solutions. This file is part of the libiberty library. Libiberty 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 of the License, or (at your option) any later version. Libiberty 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 libiberty; see the file COPYING.LIB. If not, write to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include "ansidecl.h" #include "libiberty.h" #include <stdarg.h> /* @deftypefn Extension int asprintf (char **@var{resptr}, const char *@var{format}, ...) Like @code{sprintf}, but instead of passing a pointer to a buffer, you pass a pointer to a pointer. This function will compute the size of the buffer needed, allocate memory with @code{malloc}, and store a pointer to the allocated memory in @code{*@var{resptr}}. The value returned is the same as @code{sprintf} would return. If memory could not be allocated, minus one is returned and @code{NULL} is stored in @code{*@var{resptr}}. @end deftypefn */ int asprintf (char **buf, const char *fmt, ...) { int status; VA_OPEN (ap, fmt); VA_FIXEDARG (ap, char **, buf); VA_FIXEDARG (ap, const char *, fmt); status = vasprintf (buf, fmt, ap); VA_CLOSE (ap); return status; }
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