* c-lex.c (lex_string): Let cpp_parse_escape handles truncation

	and sign-extension.
	(lex_charconst): Update for change in prototype of
	cpp_interpret_charconst.  Extend from cppchar_t to HOST_WIDE_INT
	appropriately.
	* cpphash.h (BITS_PER_CPPCHAR_T): New.
	* cppinit.c (cpp_create_reader): Initialize them for no
	change in semantics.
	(cpp_post_options): Add sanity checks.
	* cpplex.c (cpp_parse_escape): Handle precision, sign-extension
	and truncation issues.  Calculate in type cppchar_t.
	(MAX_CHAR_TYPE_SIZE, MAX_WCHAR_TYPE_SIZE): Remove.
	(cpp_interpret_charconst): Calculate in type cppchar_t.  Handle
	run-time dependent precision correctly.  Return whether the
	result is signed or not.
	* cpplib.c (dequote_string): Use cppchar_t; update.
	* cpplib.h (cppchar_signed_t): New.
	struct cpp_options): New precision members.
	(cpp_interpret_charconst, cpp_parse_escape): Update prototypes.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@53152 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 4 insertions, 4 deletions

diff --git a/gcc/cppexp.c b/gcc/cppexp.c
index 914a2070ac4..b71b02abfd2 100644
--- a/gcc/cppexp.c
+++ b/gcc/cppexp.c
@@ -283,10 +283,10 @@ eval_token (pfile, token)
      const cpp_token *token;
 {
   unsigned int temp;
+  int unsignedp = 0;
   struct op op;
 
   op.op = CPP_NUMBER;
-  op.unsignedp = 0;
 
   switch (token->type)
     {
@@ -294,9 +294,8 @@ eval_token (pfile, token)
       return parse_number (pfile, token);
 
     case CPP_WCHAR:
-      op.unsignedp = WCHAR_UNSIGNED;
-    case CPP_CHAR:		/* Always unsigned.  */
-      op.value = cpp_interpret_charconst (pfile, token, 1, &temp);
+    case CPP_CHAR:
+      op.value = cpp_interpret_charconst (pfile, token, 1, &temp, &unsignedp);
       break;
 
     case CPP_NAME:
@@ -331,6 +330,7 @@ eval_token (pfile, token)
       op.value = temp;
     }
 
+  op.unsignedp = unsignedp;
   return op;
 }