/* Like vsprintf but provides a pointer to malloc'd storage, which must
be freed by the caller.
- Copyright (C) 1994 Free Software Foundation, Inc.
+ Copyright (C) 1994, 2003 Free Software Foundation, Inc.
This file is part of the libiberty library.
Libiberty is free software; you can redistribute it and/or
#include "config.h"
#endif
#include <ansidecl.h>
-#ifdef ANSI_PROTOTYPES
#include <stdarg.h>
-#else
-#include <varargs.h>
+#if !defined (va_copy) && defined (__va_copy)
+# define va_copy(d,s) __va_copy((d),(s))
#endif
#include <stdio.h>
+#ifdef HAVE_STRING_H
#include <string.h>
+#endif
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#else
int global_total_width;
#endif
+/*
+
+@deftypefn Extension int vasprintf (char **@var{resptr}, const char *@var{format}, va_list @var{args})
+
+Like @code{vsprintf}, 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{vsprintf} would return. If memory could
+not be allocated, minus one is returned and @code{NULL} is stored in
+@code{*@var{resptr}}.
+
+@end deftypefn
-static int int_vasprintf PARAMS ((char **, const char *, va_list *));
+*/
+
+static int int_vasprintf (char **, const char *, va_list);
static int
-int_vasprintf (result, format, args)
- char **result;
- const char *format;
- va_list *args;
+int_vasprintf (char **result, const char *format, va_list args)
{
const char *p = format;
/* Add one to make sure that it is never zero, which might cause malloc
int total_width = strlen (format) + 1;
va_list ap;
- memcpy ((PTR) &ap, (PTR) args, sizeof (va_list));
+#ifdef va_copy
+ va_copy (ap, args);
+#else
+ memcpy ((PTR) &ap, (PTR) &args, sizeof (va_list));
+#endif
while (*p != '\0')
{
p++;
}
}
+#ifdef va_copy
+ va_end (ap);
+#endif
#ifdef TEST
global_total_width = total_width;
#endif
- *result = malloc (total_width);
+ *result = (char *) malloc (total_width);
if (*result != NULL)
- return vsprintf (*result, format, *args);
+ return vsprintf (*result, format, args);
else
- return 0;
+ return -1;
}
int
-vasprintf (result, format, args)
- char **result;
- const char *format;
+vasprintf (char **result, const char *format,
#if defined (_BSD_VA_LIST_) && defined (__FreeBSD__)
- _BSD_VA_LIST_ args;
+ _BSD_VA_LIST_ args)
#else
- va_list args;
+ va_list args)
#endif
{
- return int_vasprintf (result, format, &args);
+ return int_vasprintf (result, format, args);
}
#ifdef TEST
-static void checkit PARAMS ((const char *, ...));
-
-static void
-checkit VPARAMS ((const char* format, ...))
+static void ATTRIBUTE_PRINTF_1
+checkit (const char *format, ...)
{
- va_list args;
char *result;
-#ifndef ANSI_PROTOTYPES
- const char *format;
-#endif
-
- VA_START (args, format);
-
-#ifndef ANSI_PROTOTYPES
- format = va_arg (args, const char *);
-#endif
-
+ VA_OPEN (args, format);
+ VA_FIXEDARG (args, const char *, format);
vasprintf (&result, format, args);
+ VA_CLOSE (args);
+
if (strlen (result) < (size_t) global_total_width)
printf ("PASS: ");
else
printf ("FAIL: ");
printf ("%d %s\n", global_total_width, result);
+
+ free (result);
}
-extern int main PARAMS ((void));
+extern int main (void);
int
-main ()
+main (void)
{
checkit ("%d", 0x12345678);
checkit ("%200d", 5);