c-common.c (c_build_type_variant): Moved here from c-decl.c.

* c-common.c (c_build_type_variant): Moved here from c-decl.c.
	Redirected the TYPE_MAIN_VARIANT to the "real" main variant.
	Build the possibly new array type on the permanent obstack if it
        the original type was permanent.
	(permanent_obstack): Added extern declaration.

From-SVN: r3388
This commit is contained in:
Niklas Hallqvist 1993-01-30 06:06:09 +00:00
parent 42f769c15a
commit 0b73773ce6
1 changed files with 27 additions and 0 deletions

View File

@ -24,6 +24,8 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "flags.h"
#include <stdio.h>
extern struct obstack permanent_obstack;
/* Make bindings for __FUNCTION__ and __PRETTY_FUNCTION__. */
void
@ -1023,3 +1025,28 @@ get_directive_line (finput)
char_escaped = (c == '\\' && ! char_escaped);
}
}
/* Make a variant type in the proper way for C/C++, propagating qualifiers
down to the element type of an array. */
tree
c_build_type_variant (type, constp, volatilep)
tree type;
int constp, volatilep;
{
if (TREE_CODE (type) == ARRAY_TYPE)
{
tree real_main_variant = TYPE_MAIN_VARIANT (type);
int permanent = TREE_PERMANENT (type);
if (permanent)
push_obstacks (&permanent_obstack, &permanent_obstack);
type = build_array_type (c_build_type_variant (TREE_TYPE (type),
constp, volatilep),
TYPE_DOMAIN (type));
TYPE_MAIN_VARIANT (type) = real_main_variant;
if (permanent)
pop_obstacks ();
}
return build_type_variant (type, constp, volatilep);
}