/* 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
int global_total_width;
#endif
+/*
-static int int_vasprintf PARAMS ((char **, const char *, va_list *));
+@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 (result, format, args)
char **result;
const char *format;
- va_list *args;
+ 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
va_list args;
#endif
{
- return int_vasprintf (result, format, &args);
+ return int_vasprintf (result, format, args);
}
#ifdef TEST