static void
sb_check (sb *ptr, int len)
{
if (ptr->len + len >= 1 << ptr->pot)
{
sb tmp;
int pot = ptr->pot;
while (ptr->len + len >= 1 << pot)
pot++;
sb_build (&tmp, pot);
sb_add_sb (&tmp, ptr);
sb_kill (ptr);
*ptr = tmp;
}
}
void
input_scrub_include_sb (sb *from, char *position, int is_expansion)
{
int newline;
if (macro_nest > max_macro_nest)
as_fatal (_("macros nested too deeply"));
++macro_nest;
#ifdef md_macro_start
if (is_expansion)
{
md_macro_start ();
}
#endif
next_saved_file = input_scrub_push (position);
/* Allocate sufficient space: from->len + optional newline. */
newline = from->len >= 1 && from->ptr[0] != '\n';
sb_build (&from_sb, from->len + newline);
from_sb_is_expansion = is_expansion;
if (newline)
{
/* Add the sentinel required by read.c. */
sb_add_char (&from_sb, '\n');
}
sb_scrub_and_add_sb (&from_sb, from);
/* Make sure the parser looks at defined contents when it scans for
e.g. end-of-line at the end of a macro. */
sb_terminate (&from_sb);
sb_index = 1;
/* These variables are reset by input_scrub_push. Restore them
since we are, after all, still at the same point in the file. */
logical_input_line = next_saved_file->logical_input_line;
logical_input_file = next_saved_file->logical_input_file;
}
void
sb_new (sb *ptr)
{
sb_build (ptr, dsize);
}
void
sb_new (sb *ptr)
{
sb_build (ptr, INIT_ALLOC);
}
